531050513125 has 20 divisors (see below), whose sum is σ = 723928068864. Its totient is φ = 386218550000.

The previous prime is 531050513101. The next prime is 531050513129. The reversal of 531050513125 is 521315050135.

It is not a de Polignac number, because 531050513125 - 2²¹ = 531048415973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531050513129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38614981 + ... + 38628730.

Almost surely, 2^531050513125 is an apocalyptic number.

531050513125 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

531050513125 is a deficient number, since it is larger than the sum of its proper divisors (192877555739).

531050513125 is an equidigital number, since it uses as much as digits as its factorization.

531050513125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77243742 (or 77243727 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 31.

The spelling of 531050513125 in words is "five hundred thirty-one billion, fifty million, five hundred thirteen thousand, one hundred twenty-five".