257580275 has 6 divisors (see below), whose sum is σ = 319399572. Its totient is φ = 206064200.

The previous prime is 257580269. The next prime is 257580319. The reversal of 257580275 is 572085752.

It is not a de Polignac number, because 257580275 - 2⁴ = 257580259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5151581 + ... + 5151630.

It is an arithmetic number, because the mean of its divisors is an integer number (53233262).

Almost surely, 2^257580275 is an apocalyptic number.

257580275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

257580275 is a deficient number, since it is larger than the sum of its proper divisors (61819297).

257580275 is a wasteful number, since it uses less digits than its factorization.

257580275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10303221 (or 10303216 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 41.

The square root of 257580275 is about 16049.3076174644. The cubic root of 257580275 is about 636.2642677404.

The spelling of 257580275 in words is "two hundred fifty-seven million, five hundred eighty thousand, two hundred seventy-five".