257482971 has 12 divisors (see below), whose sum is σ = 372294000. Its totient is φ = 171482640.

The previous prime is 257482937. The next prime is 257482997. The reversal of 257482971 is 179284752.

It is a happy number.

257482971 is a `hidden beast` number, since 2 + 574 + 8 + 2 + 9 + 71 = 666.

It is not a de Polignac number, because 257482971 - 2⁷ = 257482843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257481971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4596 + ... + 23153.

It is an arithmetic number, because the mean of its divisors is an integer number (31024500).

Almost surely, 2^257482971 is an apocalyptic number.

257482971 is a deficient number, since it is larger than the sum of its proper divisors (114811029).

257482971 is a wasteful number, since it uses less digits than its factorization.

257482971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28786 (or 28783 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 257482971 is about 16046.2759230919. The cubic root of 257482971 is about 636.1841388617.

The spelling of 257482971 in words is "two hundred fifty-seven million, four hundred eighty-two thousand, nine hundred seventy-one".