255808410624 has 132 divisors (see below), whose sum is σ = 795460163316. Its totient is φ = 78710243328.

The previous prime is 255808410623. The next prime is 255808410661. The reversal of 255808410624 is 426014808552.

255808410624 is a `hidden beast` number, since 2 + 5 + 5 + 8 + 0 + 8 + 4 + 10 + 624 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 119771366400 + 136037044224 = 346080^2 + 368832^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 255808410624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255808410623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 947769 + ... + 1187384.

Almost surely, 2^255808410624 is an apocalyptic number.

255808410624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255808410624 is an abundant number, since it is smaller than the sum of its proper divisors (539651752692).

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

255808410624 is a wasteful number, since it uses less digits than its factorization.

255808410624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135192 (or 2135171 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 255808410624 in words is "two hundred fifty-five billion, eight hundred eight million, four hundred ten thousand, six hundred twenty-four".