257482 has 8 divisors (see below), whose sum is σ = 408996. Its totient is φ = 121152.

The previous prime is 257473. The next prime is 257489. The reversal of 257482 is 284752.

It can be written as a sum of positive squares in 2 ways, for example, as 194481 + 63001 = 441^2 + 251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 257482.

It is not an unprimeable number, because it can be changed into a prime (257489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3753 + ... + 3820.

2²⁵⁷⁴⁸² is an apocalyptic number.

257482 is a deficient number, since it is larger than the sum of its proper divisors (151514).

257482 is a wasteful number, since it uses less digits than its factorization.

257482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7592.

The product of its digits is 4480, while the sum is 28.

The square root of 257482 is about 507.4268420176. The cubic root of 257482 is about 63.6183339151.

The spelling of 257482 in words is "two hundred fifty-seven thousand, four hundred eighty-two".