257088252 has 24 divisors (see below), whose sum is σ = 610041600. Its totient is φ = 84243376.

The previous prime is 257088241. The next prime is 257088269. The reversal of 257088252 is 252880752.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 257088252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180852 + ... + 182267.

It is an arithmetic number, because the mean of its divisors is an integer number (25418400).

Almost surely, 2^257088252 is an apocalyptic number.

It is an amenable number.

257088252 is an abundant number, since it is smaller than the sum of its proper divisors (352953348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257088252 is a wasteful number, since it uses less digits than its factorization.

257088252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363185 (or 363183 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 257088252 is about 16033.9718098792. The cubic root of 257088252 is about 635.8588844782.

The spelling of 257088252 in words is "two hundred fifty-seven million, eighty-eight thousand, two hundred fifty-two".