257675464 has 8 divisors (see below), whose sum is σ = 483141510. Its totient is φ = 128837728.

The previous prime is 257675461. The next prime is 257675497. The reversal of 257675464 is 464576752.

It can be written as a sum of positive squares in only one way, i.e., 189282564 + 68392900 = 13758^2 + 8270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (257675461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16104709 + ... + 16104724.

Almost surely, 2^257675464 is an apocalyptic number.

It is an amenable number.

257675464 is a deficient number, since it is larger than the sum of its proper divisors (225466046).

257675464 is a wasteful number, since it uses less digits than its factorization.

257675464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32209439 (or 32209435 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 46.

The square root of 257675464 is about 16052.2728608755. The cubic root of 257675464 is about 636.3426354133.

The spelling of 257675464 in words is "two hundred fifty-seven million, six hundred seventy-five thousand, four hundred sixty-four".