257504036 has 12 divisors (see below), whose sum is σ = 474349680. Its totient is φ = 121975560.

The previous prime is 257504029. The next prime is 257504041. The reversal of 257504036 is 630405752.

257504036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 257503993 and 257504011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1694030 + ... + 1694181.

It is an arithmetic number, because the mean of its divisors is an integer number (39529140).

Almost surely, 2^257504036 is an apocalyptic number.

It is an amenable number.

257504036 is a deficient number, since it is larger than the sum of its proper divisors (216845644).

257504036 is a wasteful number, since it uses less digits than its factorization.

257504036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388234 (or 3388232 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 257504036 is about 16046.9322924975. The cubic root of 257504036 is about 636.2014873921.

Adding to 257504036 its reverse (630405752), we get a palindrome (887909788).

The spelling of 257504036 in words is "two hundred fifty-seven million, five hundred four thousand, thirty-six".