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2587674390625 = 561727572
BaseRepresentation
bin100101101001111101011…
…010011011000001100001
3100011101020110220002000101
4211221331122123001201
5314344024121000000
65300432230422401
7354644661255622
oct45517532330141
910141213802011
102587674390625
11908476807655
12359612b01a01
1315a02a76389c
148d35bb97a49
15474a0c0ce6a
hex25a7d69b061

2587674390625 has 63 divisors (see below), whose sum is σ = 3440556526719. Its totient is φ = 1945792800000.

The previous prime is 2587674390619. The next prime is 2587674390667. The reversal of 2587674390625 is 5260934767852.

The square root of 2587674390625 is 1608625.

It is a perfect power (a square), and thus also a powerful number.

2587674390625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 31 ways, for example, as 1264493503009 + 1323180887616 = 1124497^2 + 1150296^2 .

It is not a de Polignac number, because 2587674390625 - 211 = 2587674388577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 3418327747 + ... + 3418328503.

Almost surely, 22587674390625 is an apocalyptic number.

2587674390625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2587674390625 is the 1608625-th square number.

2587674390625 is the 804313-rd centered octagonal number.

It is an amenable number.

2587674390625 is a deficient number, since it is larger than the sum of its proper divisors (852882136094).

2587674390625 is an frugal number, since it uses more digits than its factorization.

2587674390625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 64.

Multiplying 2587674390625 by its sum of digits (64), we get a square (165611161000000 = 128690002).

The spelling of 2587674390625 in words is "two trillion, five hundred eighty-seven billion, six hundred seventy-four million, three hundred ninety thousand, six hundred twenty-five".

Divisors: 1 5 17 25 85 125 289 425 625 757 1445 2125 3125 3785 7225 10625 12869 15625 18925 36125 53125 64345 94625 180625 218773 265625 321725 473125 573049 903125 1093865 1608625 2365625 2865245 4515625 5469325 8043125 9741833 11828125 14326225 27346625 40215625 48709165 71631125 136733125 165611161 201078125 243545825 358155625 683665625 828055805 1217729125 1790778125 3418328125 4140279025 6088645625 8953890625 20701395125 30443228125 103506975625 152216140625 517534878125 2587674390625