255457320 has 64 divisors (see below), whose sum is σ = 799701120. Its totient is φ = 65159424.

The previous prime is 255457313. The next prime is 255457333. The reversal of 255457320 is 23754552.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43519 + ... + 49038.

It is an arithmetic number, because the mean of its divisors is an integer number (12495330).

Almost surely, 2^255457320 is an apocalyptic number.

255457320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255457320 is an abundant number, since it is smaller than the sum of its proper divisors (544243800).

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

255457320 is a wasteful number, since it uses less digits than its factorization.

255457320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92594 (or 92590 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 255457320 is about 15983.0322529863. The cubic root of 255457320 is about 634.5114310818.

The spelling of 255457320 in words is "two hundred fifty-five million, four hundred fifty-seven thousand, three hundred twenty".