255863456 has 24 divisors (see below), whose sum is σ = 504149184. Its totient is φ = 127825600.

The previous prime is 255863437. The next prime is 255863479. The reversal of 255863456 is 654368552.

It is a super-2 number, since 2×255863456² = 130932216232527872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48131 + ... + 53181.

It is an arithmetic number, because the mean of its divisors is an integer number (21006216).

Almost surely, 2^255863456 is an apocalyptic number.

It is an amenable number.

255863456 is a deficient number, since it is larger than the sum of its proper divisors (248285728).

255863456 is a wasteful number, since it uses less digits than its factorization.

255863456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6644 (or 6636 counting only the distinct ones).

The product of its digits is 864000, while the sum is 44.

The square root of 255863456 is about 15995.7324308704. The cubic root of 255863456 is about 634.8475100388.

The spelling of 255863456 in words is "two hundred fifty-five million, eight hundred sixty-three thousand, four hundred fifty-six".