252738256 has 10 divisors (see below), whose sum is σ = 489680402. Its totient is φ = 126369120.

The previous prime is 252738229. The next prime is 252738263. The reversal of 252738256 is 652837252.

It can be written as a sum of positive squares in only one way, i.e., 201185856 + 51552400 = 14184^2 + 7180^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 7898055 + ... + 7898086.

Almost surely, 2^252738256 is an apocalyptic number.

It is an amenable number.

252738256 is a deficient number, since it is larger than the sum of its proper divisors (236942146).

252738256 is a wasteful number, since it uses less digits than its factorization.

252738256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15796149 (or 15796143 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 252738256 is about 15897.7437392858. The cubic root of 252738256 is about 632.2521693059.

The spelling of 252738256 in words is "two hundred fifty-two million, seven hundred thirty-eight thousand, two hundred fifty-six".