53572431 has 16 divisors (see below), whose sum is σ = 78398208. Its totient is φ = 32270400.

The previous prime is 53572427. The next prime is 53572447. The reversal of 53572431 is 13427535.

It is not a de Polignac number, because 53572431 - 2² = 53572427 is a prime.

It is a super-2 number, since 2×53572431² = 5740010726499522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53572481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651 + ... + 10371.

It is an arithmetic number, because the mean of its divisors is an integer number (4899888).

Almost surely, 2^53572431 is an apocalyptic number.

53572431 is a deficient number, since it is larger than the sum of its proper divisors (24825777).

53572431 is a wasteful number, since it uses less digits than its factorization.

53572431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9902.

The product of its digits is 12600, while the sum is 30.

The square root of 53572431 is about 7319.3190257018. The cubic root of 53572431 is about 376.9760718607.

Adding to 53572431 its reverse (13427535), we get a palindrome (66999966).

Subtracting from 53572431 its reverse (13427535), we obtain a square (40144896 = 6336²).

The spelling of 53572431 in words is "fifty-three million, five hundred seventy-two thousand, four hundred thirty-one".