2531115384 has 48 divisors (see below), whose sum is σ = 7360900200. Its totient is φ = 723175488.

The previous prime is 2531115337. The next prime is 2531115413. The reversal of 2531115384 is 4835111352.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 1074979 + ... + 1077330.

Almost surely, 2^2531115384 is an apocalyptic number.

2531115384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2531115384 is an abundant number, since it is smaller than the sum of its proper divisors (4829784816).

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

2531115384 is a wasteful number, since it uses less digits than its factorization.

2531115384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152332 (or 2152321 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 2531115384 is about 50310.1916513941. The cubic root of 2531115384 is about 1362.8162848372.

The spelling of 2531115384 in words is "two billion, five hundred thirty-one million, one hundred fifteen thousand, three hundred eighty-four".