53722431961 has 27 divisors (see below), whose sum is σ = 62378006943. Its totient is φ = 46226402640.

The previous prime is 53722431947. The next prime is 53722431989. The reversal of 53722431961 is 16913422735.

The square root of 53722431961 is 231781.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 868421961 + 52854010000 = 29469^2 + 229900^2 .

It is not a de Polignac number, because 53722431961 - 2⁵ = 53722431929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53722431911) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 48441675 + ... + 48442783.

Almost surely, 2^53722431961 is an apocalyptic number.

53722431961 is the 231781-st square number.

53722431961 is the 115891-st centered octagonal number.

It is an amenable number.

53722431961 is a deficient number, since it is larger than the sum of its proper divisors (8655574982).

53722431961 is an equidigital number, since it uses as much as digits as its factorization.

53722431961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278 (or 1139 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The spelling of 53722431961 in words is "fifty-three billion, seven hundred twenty-two million, four hundred thirty-one thousand, nine hundred sixty-one".