51532117413 has 16 divisors (see below), whose sum is σ = 79052150400. Its totient is φ = 29249292096.

The previous prime is 51532117409. The next prime is 51532117499. The reversal of 51532117413 is 31471123515.

It is not a de Polignac number, because 51532117413 - 2² = 51532117409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51532117613) 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, 8231470 + ... + 8237727.

It is an arithmetic number, because the mean of its divisors is an integer number (4940759400).

Almost surely, 2^51532117413 is an apocalyptic number.

It is an amenable number.

51532117413 is a deficient number, since it is larger than the sum of its proper divisors (27520032987).

51532117413 is a wasteful number, since it uses less digits than its factorization.

51532117413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16469356.

The product of its digits is 12600, while the sum is 33.

The spelling of 51532117413 in words is "fifty-one billion, five hundred thirty-two million, one hundred seventeen thousand, four hundred thirteen".