257563012 has 36 divisors (see below), whose sum is σ = 551928720. Its totient is φ = 104572944.

The previous prime is 257563003. The next prime is 257563021. The reversal of 257563012 is 210365752.

It is an interprime number because it is at equal distance from previous prime (257563003) and next prime (257563021).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30858 + ... + 38305.

Almost surely, 2^257563012 is an apocalyptic number.

It is an amenable number.

257563012 is an abundant number, since it is smaller than the sum of its proper divisors (294365708).

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

257563012 is a wasteful number, since it uses less digits than its factorization.

257563012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69200 (or 69191 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 257563012 is about 16048.7697970904. The cubic root of 257563012 is about 636.2500533038.

The spelling of 257563012 in words is "two hundred fifty-seven million, five hundred sixty-three thousand, twelve".