257109052 has 24 divisors (see below), whose sum is σ = 454104560. Its totient is φ = 127370880.

The previous prime is 257109043. The next prime is 257109077. The reversal of 257109052 is 250901752.

It is a super-2 number, since 2×257109052² = 132210129240677408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273928 + ... + 274864.

Almost surely, 2^257109052 is an apocalyptic number.

It is an amenable number.

257109052 is a deficient number, since it is larger than the sum of its proper divisors (196995508).

257109052 is a wasteful number, since it uses less digits than its factorization.

257109052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501 (or 1499 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 257109052 is about 16034.6204195796. The cubic root of 257109052 is about 635.8760322968.

The spelling of 257109052 in words is "two hundred fifty-seven million, one hundred nine thousand, fifty-two".