531636415625 has 96 divisors (see below), whose sum is σ = 781482481920. Its totient is φ = 354119040000.

The previous prime is 531636415613. The next prime is 531636415631. The reversal of 531636415625 is 526514636135.

It is not a de Polignac number, because 531636415625 - 2⁸ = 531636415369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531636415625.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 106988141 + ... + 106993109.

It is an arithmetic number, because the mean of its divisors is an integer number (8140442520).

Almost surely, 2^531636415625 is an apocalyptic number.

It is an amenable number.

531636415625 is a deficient number, since it is larger than the sum of its proper divisors (249846066295).

531636415625 is an frugal number, since it uses more digits than its factorization.

531636415625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5141 (or 5121 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 47.

The spelling of 531636415625 in words is "five hundred thirty-one billion, six hundred thirty-six million, four hundred fifteen thousand, six hundred twenty-five".