255378624 has 56 divisors (see below), whose sum is σ = 715444848. Its totient is φ = 80117760.

The previous prime is 255378623. The next prime is 255378631. The reversal of 255378624 is 426873552.

It is a super-2 number, since 2×255378624² = 130436483192266752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255378623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35857 + ... + 42384.

Almost surely, 2^255378624 is an apocalyptic number.

255378624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255378624 is an abundant number, since it is smaller than the sum of its proper divisors (460066224).

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

255378624 is a wasteful number, since it uses less digits than its factorization.

255378624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78273 (or 78263 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 255378624 is about 15980.5702025929. The cubic root of 255378624 is about 634.4462686769.

The spelling of 255378624 in words is "two hundred fifty-five million, three hundred seventy-eight thousand, six hundred twenty-four".