257364275 has 24 divisors (see below), whose sum is σ = 386180640. Its totient is φ = 166095360.

The previous prime is 257364251. The next prime is 257364277. The reversal of 257364275 is 572463752.

It is not a de Polignac number, because 257364275 - 2²⁰ = 256315699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257364277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40280 + ... + 46229.

It is an arithmetic number, because the mean of its divisors is an integer number (16090860).

Almost surely, 2^257364275 is an apocalyptic number.

257364275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

257364275 is a deficient number, since it is larger than the sum of its proper divisors (128816365).

257364275 is a wasteful number, since it uses less digits than its factorization.

257364275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86543 (or 86538 counting only the distinct ones).

The product of its digits is 352800, while the sum is 41.

The square root of 257364275 is about 16042.5769438703. The cubic root of 257364275 is about 636.0863665461.

The spelling of 257364275 in words is "two hundred fifty-seven million, three hundred sixty-four thousand, two hundred seventy-five".