53121432633356 has 18 divisors (see below), whose sum is σ = 96058032846300. Its totient is φ = 25703919014280.

The previous prime is 53121432633329. The next prime is 53121432633359. The reversal of 53121432633356 is 65333623412135.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 53121432633356.

It is not an unprimeable number, because it can be changed into a prime (53121432633359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6909651806 + ... + 6909659493.

It is an arithmetic number, because the mean of its divisors is an integer number (5336557380350).

Almost surely, 2^{53121432633356} is an apocalyptic number.

It is an amenable number.

53121432633356 is a deficient number, since it is larger than the sum of its proper divisors (42936600212944).

53121432633356 is a wasteful number, since it uses less digits than its factorization.

53121432633356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13819311365 (or 13819311332 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 47.

The spelling of 53121432633356 in words is "fifty-three trillion, one hundred twenty-one billion, four hundred thirty-two million, six hundred thirty-three thousand, three hundred fifty-six".