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25995112900 = 22522327012
BaseRepresentation
bin11000001101011011…
…011111000111000100
32111002122101120002021
4120031123133013010
5411214222103100
615535245252524
71610116546111
oct301533370704
974078346067
1025995112900
111002a622089
125055864144
1325b3752113
1413885c1908
15a2223aa1a
hex60d6df1c4

25995112900 has 81 divisors (see below), whose sum is σ = 59052852103. Its totient is φ = 9931768000.

The previous prime is 25995112867. The next prime is 25995112909. The reversal of 25995112900 is 921159952.

The square root of 25995112900 is 161230.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1763832004 + 24231280896 = 41998^2 + 155664^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25995112909) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 37082550 + ... + 37083250.

Almost surely, 225995112900 is an apocalyptic number.

25995112900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

25995112900 is the 161230-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25995112900

25995112900 is an abundant number, since it is smaller than the sum of its proper divisors (33057739203).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25995112900 is an equidigital number, since it uses as much as digits as its factorization.

25995112900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 43.

The spelling of 25995112900 in words is "twenty-five billion, nine hundred ninety-five million, one hundred twelve thousand, nine hundred".

Divisors: 1 2 4 5 10 20 23 25 46 50 92 100 115 230 460 529 575 701 1058 1150 1402 2116 2300 2645 2804 3505 5290 7010 10580 13225 14020 16123 17525 26450 32246 35050 52900 64492 70100 80615 161230 322460 370829 403075 491401 741658 806150 982802 1483316 1612300 1854145 1965604 2457005 3708290 4914010 7416580 9270725 9828020 11302223 12285025 18541450 22604446 24570050 37082900 45208892 49140100 56511115 113022230 226044460 259951129 282555575 519902258 565111150 1039804516 1130222300 1299755645 2599511290 5199022580 6498778225 12997556450 25995112900