255556589355 has 32 divisors (see below), whose sum is σ = 457372008000. Its totient is φ = 135382093056.

The previous prime is 255556589347. The next prime is 255556589369. The reversal of 255556589355 is 553985655552.

255556589355 is a `hidden beast` number, since 25 + 5 + 556 + 5 + 8 + 9 + 3 + 55 = 666.

It is not a de Polignac number, because 255556589355 - 2³ = 255556589347 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 255556589292 and 255556589301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6332274 + ... + 6372503.

It is an arithmetic number, because the mean of its divisors is an integer number (14292875250).

Almost surely, 2^255556589355 is an apocalyptic number.

255556589355 is a deficient number, since it is larger than the sum of its proper divisors (201815418645).

255556589355 is a wasteful number, since it uses less digits than its factorization.

255556589355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12704940 (or 12704934 counting only the distinct ones).

The product of its digits is 202500000, while the sum is 63.

The spelling of 255556589355 in words is "two hundred fifty-five billion, five hundred fifty-six million, five hundred eighty-nine thousand, three hundred fifty-five".