2531331408 has 20 divisors (see below), whose sum is σ = 6539272928. Its totient is φ = 843777120.

The previous prime is 2531331403. The next prime is 2531331409. The reversal of 2531331408 is 8041331352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531331403) 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 3 ways as a sum of consecutive naturals, for example, 26367988 + ... + 26368083.

Almost surely, 2^2531331408 is an apocalyptic number.

It is an amenable number.

2531331408 is an abundant number, since it is smaller than the sum of its proper divisors (4007941520).

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

2531331408 is a wasteful number, since it uses less digits than its factorization.

2531331408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52736082 (or 52736076 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2531331408 is about 50312.3385264490. The cubic root of 2531331408 is about 1362.8550546555.

It can be divided in two parts, 253133 and 1408, that added together give a triangular number (254541 = T₇₁₃).

The spelling of 2531331408 in words is "two billion, five hundred thirty-one million, three hundred thirty-one thousand, four hundred eight".