257850772 has 6 divisors (see below), whose sum is σ = 451238858. Its totient is φ = 128925384.

The previous prime is 257850737. The next prime is 257850779. The reversal of 257850772 is 277058752.

It can be written as a sum of positive squares in only one way, i.e., 239754256 + 18096516 = 15484^2 + 4254^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257850779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32231343 + ... + 32231350.

Almost surely, 2^257850772 is an apocalyptic number.

It is an amenable number.

257850772 is a deficient number, since it is larger than the sum of its proper divisors (193388086).

257850772 is a wasteful number, since it uses less digits than its factorization.

257850772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64462697 (or 64462695 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 43.

The square root of 257850772 is about 16057.7324675684. The cubic root of 257850772 is about 636.4869133663.

The spelling of 257850772 in words is "two hundred fifty-seven million, eight hundred fifty thousand, seven hundred seventy-two".