2256876831 has 16 divisors (see below), whose sum is σ = 3395928960. Its totient is φ = 1320637920.

The previous prime is 2256876823. The next prime is 2256876883. The reversal of 2256876831 is 1386786522.

It is not a de Polignac number, because 2256876831 - 2³ = 2256876823 is a prime.

It is a super-2 number, since 2×2256876831² = 10186986060609205122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256876331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1178185 + ... + 1180098.

It is an arithmetic number, because the mean of its divisors is an integer number (212245560).

Almost surely, 2^2256876831 is an apocalyptic number.

2256876831 is a deficient number, since it is larger than the sum of its proper divisors (1139052129).

2256876831 is a wasteful number, since it uses less digits than its factorization.

2256876831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358326.

The product of its digits is 967680, while the sum is 48.

The square root of 2256876831 is about 47506.5977628371. The cubic root of 2256876831 is about 1311.7043316040.

It can be divided in two parts, 22568 and 76831, that added together give a palindrome (99399).

The spelling of 2256876831 in words is "two billion, two hundred fifty-six million, eight hundred seventy-six thousand, eight hundred thirty-one".