31053425521 has 16 divisors (see below), whose sum is σ = 31793944000. Its totient is φ = 30321770688.

The previous prime is 31053425509. The next prime is 31053425537. The reversal of 31053425521 is 12552435013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31053425521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31053495521) 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, 6824155 + ... + 6828703.

It is an arithmetic number, because the mean of its divisors is an integer number (1987121500).

Almost surely, 2^31053425521 is an apocalyptic number.

It is an amenable number.

31053425521 is a deficient number, since it is larger than the sum of its proper divisors (740518479).

31053425521 is a wasteful number, since it uses less digits than its factorization.

31053425521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 31053425521 in words is "thirty-one billion, fifty-three million, four hundred twenty-five thousand, five hundred twenty-one".