53507012831 has 4 divisors (see below), whose sum is σ = 56654484192. Its totient is φ = 50359541472.

The previous prime is 53507012821. The next prime is 53507012869. The reversal of 53507012831 is 13821070535.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53507012831 is a prime.

It is a super-2 number, since 2×53507012831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53507012791 and 53507012800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53507012821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1573735655 + ... + 1573735688.

It is an arithmetic number, because the mean of its divisors is an integer number (14163621048).

Almost surely, 2^53507012831 is an apocalyptic number.

53507012831 is a deficient number, since it is larger than the sum of its proper divisors (3147471361).

53507012831 is a wasteful number, since it uses less digits than its factorization.

53507012831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147471360.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 53507012831 in words is "fifty-three billion, five hundred seven million, twelve thousand, eight hundred thirty-one".