2257072831 has 12 divisors (see below), whose sum is σ = 2511646536. Its totient is φ = 2016232560.

The previous prime is 2257072819. The next prime is 2257072877. The reversal of 2257072831 is 1382707522.

It is not a de Polignac number, because 2257072831 - 2⁵ = 2257072799 is a prime.

It is a super-2 number, since 2×2257072831² = 10188755528876709122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257073831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77841 + ... + 102826.

It is an arithmetic number, because the mean of its divisors is an integer number (209303878).

Almost surely, 2^2257072831 is an apocalyptic number.

2257072831 is a deficient number, since it is larger than the sum of its proper divisors (254573705).

2257072831 is a wasteful number, since it uses less digits than its factorization.

2257072831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180742 (or 180711 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 2257072831 is about 47508.6605894125. The cubic root of 2257072831 is about 1311.7423024557.

The spelling of 2257072831 in words is "two billion, two hundred fifty-seven million, seventy-two thousand, eight hundred thirty-one".