255635489846025 has 81 divisors (see below), whose sum is σ = 458761192167733. Its totient is φ = 136074540345600.

The previous prime is 255635489845997. The next prime is 255635489846027. The reversal of 255635489846025 is 520648984536552.

The square root of 255635489846025 is 15988605.

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

255635489846025 is a `hidden beast` number, since 2 + 5 + 5 + 6 + 3 + 5 + 4 + 8 + 9 + 8 + 4 + 602 + 5 = 666.

255635489846025 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 36386700915321 + 219248788930704 = 6032139^2 + 14807052^2 .

It is not a de Polignac number, because 255635489846025 - 2³⁵ = 255601130107657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255635489846027) 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, 234313005730 + ... + 234313006820.

Almost surely, 2^{255635489846025} is an apocalyptic number.

255635489846025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

255635489846025 is the 15988605-th square number.

255635489846025 is the 7994303-rd centered octagonal number.

It is an amenable number.

255635489846025 is a deficient number, since it is larger than the sum of its proper divisors (203125702321708).

255635489846025 is an frugal number, since it uses more digits than its factorization.

255635489846025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152 (or 2076 counting only the distinct ones).

The product of its (nonzero) digits is 2488320000, while the sum is 72.

The spelling of 255635489846025 in words is "two hundred fifty-five trillion, six hundred thirty-five billion, four hundred eighty-nine million, eight hundred forty-six thousand, twenty-five".