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2577085225 = 52112132712
BaseRepresentation
bin1001100110011011…
…0011001100101001
320122121020111022221
42121212303030221
520234213211400
61103415514041
7120601602001
oct23146631451
96577214287
102577085225
111102774300
125bb088921
13320babc00
141a6399001
151013a5c1a
hex999b3329

2577085225 has 81 divisors (see below), whose sum is σ = 3857804517. Its totient is φ = 1705704000.

The previous prime is 2577085193. The next prime is 2577085229. The reversal of 2577085225 is 5225807752.

The square root of 2577085225 is 50765.

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

2577085225 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 4 ways, for example, as 664247529 + 1912837696 = 25773^2 + 43736^2 .

It is not a de Polignac number, because 2577085225 - 25 = 2577085193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2577085229) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 36296940 + ... + 36297010.

Almost surely, 22577085225 is an apocalyptic number.

2577085225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2577085225 is the 50765-th square number.

2577085225 is the 25383-rd centered octagonal number.

It is an amenable number.

2577085225 is a deficient number, since it is larger than the sum of its proper divisors (1280719292).

2577085225 is a wasteful number, since it uses less digits than its factorization.

2577085225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 43.

The cubic root of 2577085225 is about 1371.0172750670.

The spelling of 2577085225 in words is "two billion, five hundred seventy-seven million, eighty-five thousand, two hundred twenty-five".

Divisors: 1 5 11 13 25 55 65 71 121 143 169 275 325 355 605 715 781 845 923 1573 1775 1859 3025 3575 3905 4225 4615 5041 7865 8591 9295 10153 11999 19525 20449 23075 25205 39325 42955 46475 50765 55451 59995 65533 102245 111683 126025 131989 214775 253825 277255 299975 327665 511225 558415 609961 659945 720863 851929 1386275 1451879 1638325 2792075 3049805 3299725 3604315 4259645 7259395 7929493 9371219 15249025 18021575 21298225 36296975 39647465 46856095 103083409 198237325 234280475 515417045 2577085225