257065832 has 16 divisors (see below), whose sum is σ = 490168800. Its totient is φ = 126354160.

The previous prime is 257065829. The next prime is 257065843. The reversal of 257065832 is 238560752.

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 3 ways as a sum of consecutive naturals, for example, 271844 + ... + 272787.

It is an arithmetic number, because the mean of its divisors is an integer number (30635550).

Almost surely, 2^257065832 is an apocalyptic number.

It is an amenable number.

257065832 is a deficient number, since it is larger than the sum of its proper divisors (233102968).

257065832 is a wasteful number, since it uses less digits than its factorization.

257065832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544696 (or 544692 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 257065832 is about 16033.2726540778. The cubic root of 257065832 is about 635.8404000725.

The spelling of 257065832 in words is "two hundred fifty-seven million, sixty-five thousand, eight hundred thirty-two".