257024625400 has 24 divisors (see below), whose sum is σ = 597582254520. Its totient is φ = 102809850080.

The previous prime is 257024625331. The next prime is 257024625401. The reversal of 257024625400 is 4526420752.

It is a self number, because there is not a number n which added to its sum of digits gives 257024625400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257024625401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 642561364 + ... + 642561763.

It is an arithmetic number, because the mean of its divisors is an integer number (24899260605).

Almost surely, 2^257024625400 is an apocalyptic number.

257024625400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257024625400 is an abundant number, since it is smaller than the sum of its proper divisors (340557629120).

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

257024625400 is a wasteful number, since it uses less digits than its factorization.

257024625400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285123143 (or 1285123134 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

The spelling of 257024625400 in words is "two hundred fifty-seven billion, twenty-four million, six hundred twenty-five thousand, four hundred".