631522425556 has 48 divisors (see below), whose sum is σ = 1250781840000. Its totient is φ = 276362835840.

The previous prime is 631522425551. The next prime is 631522425587. The reversal of 631522425556 is 655524225136.

631522425556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631522425551) 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, 263736 + ... + 1154383.

It is an arithmetic number, because the mean of its divisors is an integer number (26057955000).

Almost surely, 2^631522425556 is an apocalyptic number.

It is an amenable number.

631522425556 is a deficient number, since it is larger than the sum of its proper divisors (619259414444).

631522425556 is a wasteful number, since it uses less digits than its factorization.

631522425556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418512 (or 1418510 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 46.

The spelling of 631522425556 in words is "six hundred thirty-one billion, five hundred twenty-two million, four hundred twenty-five thousand, five hundred fifty-six".