257197272 has 32 divisors (see below), whose sum is σ = 648898800. Its totient is φ = 84945024.

The previous prime is 257197271. The next prime is 257197277. The reversal of 257197272 is 272791752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257197271) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 46543 + ... + 51774.

Almost surely, 2^257197272 is an apocalyptic number.

It is an amenable number.

257197272 is an abundant number, since it is smaller than the sum of its proper divisors (391701528).

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

257197272 is a wasteful number, since it uses less digits than its factorization.

257197272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98435 (or 98431 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 257197272 is about 16037.3711062630. The cubic root of 257197272 is about 635.9487518533.

The spelling of 257197272 in words is "two hundred fifty-seven million, one hundred ninety-seven thousand, two hundred seventy-two".