257962 has 4 divisors (see below), whose sum is σ = 386946. Its totient is φ = 128980.

The previous prime is 257953. The next prime is 257981. The reversal of 257962 is 269752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 136161 + 121801 = 369^2 + 349^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64489 + ... + 64492.

2²⁵⁷⁹⁶² is an apocalyptic number.

257962 is a deficient number, since it is larger than the sum of its proper divisors (128984).

257962 is a wasteful number, since it uses less digits than its factorization.

257962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128983.

The product of its digits is 7560, while the sum is 31.

The square root of 257962 is about 507.8995963771. The cubic root of 257962 is about 63.6578419768.

The spelling of 257962 in words is "two hundred fifty-seven thousand, nine hundred sixty-two".