257568012 has 60 divisors (see below), whose sum is σ = 725140416. Its totient is φ = 79250400.

The previous prime is 257568011. The next prime is 257568029. The reversal of 257568012 is 210865752.

It is a happy number.

257568012 is a `hidden beast` number, since 2 + 575 + 6 + 80 + 1 + 2 = 666.

257568012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (257568011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26364 + ... + 34787.

Almost surely, 2^257568012 is an apocalyptic number.

It is an amenable number.

257568012 is an abundant number, since it is smaller than the sum of its proper divisors (467572404).

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

257568012 is a wasteful number, since it uses less digits than its factorization.

257568012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61180 (or 61169 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 257568012 is about 16048.9255715141. The cubic root of 257568012 is about 636.2541703930.

The spelling of 257568012 in words is "two hundred fifty-seven million, five hundred sixty-eight thousand, twelve".