53015324420 has 72 divisors (see below), whose sum is σ = 113806105224. Its totient is φ = 20744875008.

The previous prime is 53015324387. The next prime is 53015324437. The reversal of 53015324420 is 2442351035.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 2105524996 + 50909799424 = 45886^2 + 225632^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 22302272 + ... + 22304648.

Almost surely, 2^53015324420 is an apocalyptic number.

It is an amenable number.

53015324420 is an abundant number, since it is smaller than the sum of its proper divisors (60790780804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53015324420 is a wasteful number, since it uses less digits than its factorization.

53015324420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889 (or 2834 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 53015324420 its reverse (2442351035), we get a palindrome (55457675455).

The spelling of 53015324420 in words is "fifty-three billion, fifteen million, three hundred twenty-four thousand, four hundred twenty".