631263133325 has 24 divisors (see below), whose sum is σ = 855899135616. Its totient is φ = 458040096000.

The previous prime is 631263133309. The next prime is 631263133327. The reversal of 631263133325 is 523331362136.

It is not a de Polignac number, because 631263133325 - 2⁴ = 631263133309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631263133327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2531621 + ... + 2769770.

It is an arithmetic number, because the mean of its divisors is an integer number (35662463984).

Almost surely, 2^631263133325 is an apocalyptic number.

It is an amenable number.

631263133325 is a deficient number, since it is larger than the sum of its proper divisors (224636002291).

631263133325 is a wasteful number, since it uses less digits than its factorization.

631263133325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301845 (or 5301840 counting only the distinct ones).

The product of its digits is 174960, while the sum is 38.

The spelling of 631263133325 in words is "six hundred thirty-one billion, two hundred sixty-three million, one hundred thirty-three thousand, three hundred twenty-five".