257113498 has 4 divisors (see below), whose sum is σ = 385670250. Its totient is φ = 128556748.

The previous prime is 257113471. The next prime is 257113511. The reversal of 257113498 is 894311752.

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., 249861249 + 7252249 = 15807^2 + 2693^2 .

It is a super-2 number, since 2×257113498² = 132214701707592008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 257113498.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64278373 + ... + 64278376.

Almost surely, 2^257113498 is an apocalyptic number.

257113498 is a deficient number, since it is larger than the sum of its proper divisors (128556752).

257113498 is a wasteful number, since it uses less digits than its factorization.

257113498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128556751.

The product of its digits is 60480, while the sum is 40.

The square root of 257113498 is about 16034.7590564997. The cubic root of 257113498 is about 635.8796975231.

The spelling of 257113498 in words is "two hundred fifty-seven million, one hundred thirteen thousand, four hundred ninety-eight".