257512 has 8 divisors (see below), whose sum is σ = 482850. Its totient is φ = 128752.

The previous prime is 257503. The next prime is 257519. The reversal of 257512 is 215752.

It can be written as a sum of positive squares in only one way, i.e., 236196 + 21316 = 486^2 + 146^2 .

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 (257519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16087 + ... + 16102.

2²⁵⁷⁵¹² is an apocalyptic number.

It is an amenable number.

257512 is a deficient number, since it is larger than the sum of its proper divisors (225338).

257512 is a wasteful number, since it uses less digits than its factorization.

257512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32195 (or 32191 counting only the distinct ones).

The product of its digits is 700, while the sum is 22.

The square root of 257512 is about 507.4564020682. The cubic root of 257512 is about 63.6208046068.

The spelling of 257512 in words is "two hundred fifty-seven thousand, five hundred twelve".