257625214 has 24 divisors (see below), whose sum is σ = 485445744. Its totient is φ = 100372800.

The previous prime is 257625163. The next prime is 257625227. The reversal of 257625214 is 412526752.

It is a self number, because there is not a number n which added to its sum of digits gives 257625214.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74347 + ... + 77734.

It is an arithmetic number, because the mean of its divisors is an integer number (20226906).

Almost surely, 2^257625214 is an apocalyptic number.

257625214 is a deficient number, since it is larger than the sum of its proper divisors (227820530).

257625214 is a wasteful number, since it uses less digits than its factorization.

257625214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152112 (or 152101 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 257625214 is about 16050.7075856487. The cubic root of 257625214 is about 636.3012677491.

It can be divided in two parts, 25762 and 5214, that added together give a square (30976 = 176²).

The spelling of 257625214 in words is "two hundred fifty-seven million, six hundred twenty-five thousand, two hundred fourteen".