53231256961 has 3 divisors (see below), whose sum is σ = 53231487681. Its totient is φ = 53231026242.

The previous prime is 53231256959. The next prime is 53231257043. The reversal of 53231256961 is 16965213235.

The square root of 53231256961 is 230719.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 53231256961 - 2¹ = 53231256959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53231256461) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 115360 + ... + 346078.

It is an arithmetic number, because the mean of its divisors is an integer number (17743829227).

Almost surely, 2^53231256961 is an apocalyptic number.

53231256961 is the 230719-th square number.

53231256961 is the 115360-th centered octagonal number.

It is an amenable number.

53231256961 is a deficient number, since it is larger than the sum of its proper divisors (230720).

53231256961 is an frugal number, since it uses more digits than its factorization.

53231256961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461438 (or 230719 counting only the distinct ones).

The product of its digits is 291600, while the sum is 43.

The spelling of 53231256961 in words is "fifty-three billion, two hundred thirty-one million, two hundred fifty-six thousand, nine hundred sixty-one".