257444252 has 48 divisors (see below), whose sum is σ = 508502400. Its totient is φ = 113218560.

The previous prime is 257444237. The next prime is 257444269. The reversal of 257444252 is 252444752.

257444252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118052 + ... + 120212.

It is an arithmetic number, because the mean of its divisors is an integer number (10593800).

Almost surely, 2^257444252 is an apocalyptic number.

It is an amenable number.

257444252 is a deficient number, since it is larger than the sum of its proper divisors (251058148).

257444252 is a wasteful number, since it uses less digits than its factorization.

257444252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286 (or 2284 counting only the distinct ones).

The product of its digits is 89600, while the sum is 35.

The square root of 257444252 is about 16045.0693984164. The cubic root of 257444252 is about 636.1522485346.

The spelling of 257444252 in words is "two hundred fifty-seven million, four hundred forty-four thousand, two hundred fifty-two".