53121433571 has 2 divisors, whose sum is σ = 53121433572. Its totient is φ = 53121433570.

The previous prime is 53121433529. The next prime is 53121433591. The reversal of 53121433571 is 17533412135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53121433571 - 2⁶ = 53121433507 is a prime.

It is not a weakly prime, because it can be changed into another prime (53121433591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26560716785 + 26560716786.

It is an arithmetic number, because the mean of its divisors is an integer number (26560716786).

Almost surely, 2^53121433571 is an apocalyptic number.

53121433571 is a deficient number, since it is larger than the sum of its proper divisors (1).

53121433571 is an equidigital number, since it uses as much as digits as its factorization.

53121433571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 35.

The spelling of 53121433571 in words is "fifty-three billion, one hundred twenty-one million, four hundred thirty-three thousand, five hundred seventy-one".