255553956 has 72 divisors (see below), whose sum is σ = 762105344. Its totient is φ = 70657920.

The previous prime is 255553951. The next prime is 255553981. The reversal of 255553956 is 659355552.

255553956 is a `hidden beast` number, since 2 + 5 + 5 + 553 + 95 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (255553951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8545 + ... + 24168.

Almost surely, 2^255553956 is an apocalyptic number.

It is an amenable number.

255553956 is an abundant number, since it is smaller than the sum of its proper divisors (506551388).

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

255553956 is a wasteful number, since it uses less digits than its factorization.

255553956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32761 (or 32756 counting only the distinct ones).

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

The square root of 255553956 is about 15986.0550480724. The cubic root of 255553956 is about 634.5914299854.

The spelling of 255553956 in words is "two hundred fifty-five million, five hundred fifty-three thousand, nine hundred fifty-six".