255953655 has 32 divisors (see below), whose sum is σ = 478982400. Its totient is φ = 129322656.

The previous prime is 255953603. The next prime is 255953671. The reversal of 255953655 is 556359552.

255953655 is a `hidden beast` number, since 2 + 5 + 595 + 3 + 6 + 55 = 666.

It is not a de Polignac number, because 255953655 - 2⁷ = 255953527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 255953655.

It is a congruent number.

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, 47329 + ... + 52458.

It is an arithmetic number, because the mean of its divisors is an integer number (14968200).

Almost surely, 2^255953655 is an apocalyptic number.

255953655 is a deficient number, since it is larger than the sum of its proper divisors (223028745).

255953655 is a wasteful number, since it uses less digits than its factorization.

255953655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99820 (or 99814 counting only the distinct ones).

The product of its digits is 1012500, while the sum is 45.

The square root of 255953655 is about 15998.5516531966. The cubic root of 255953655 is about 634.9221017552.

The spelling of 255953655 in words is "two hundred fifty-five million, nine hundred fifty-three thousand, six hundred fifty-five".