2531322539 has 4 divisors (see below), whose sum is σ = 2533183800. Its totient is φ = 2529461280.

The previous prime is 2531322529. The next prime is 2531322553. The reversal of 2531322539 is 9352231352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2531322539 - 2²⁴ = 2514545323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2531322499 and 2531322508.

It is not an unprimeable number, because it can be changed into a prime (2531322509) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 928589 + ... + 931310.

It is an arithmetic number, because the mean of its divisors is an integer number (633295950).

Almost surely, 2^2531322539 is an apocalyptic number.

2531322539 is a deficient number, since it is larger than the sum of its proper divisors (1861261).

2531322539 is a wasteful number, since it uses less digits than its factorization.

2531322539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861260.

The product of its digits is 48600, while the sum is 35.

The square root of 2531322539 is about 50312.2503869584. The cubic root of 2531322539 is about 1362.8534629798.

The spelling of 2531322539 in words is "two billion, five hundred thirty-one million, three hundred twenty-two thousand, five hundred thirty-nine".