53231144 has 16 divisors (see below), whose sum is σ = 100480500. Its totient is φ = 26436352.

The previous prime is 53231117. The next prime is 53231147. The reversal of 53231144 is 44113235.

It can be written as a sum of positive squares in 2 ways, for example, as 50951044 + 2280100 = 7138^2 + 1510^2 .

It is not an unprimeable number, because it can be changed into a prime (53231147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21137 + ... + 23520.

Almost surely, 2^53231144 is an apocalyptic number.

It is an amenable number.

53231144 is a deficient number, since it is larger than the sum of its proper divisors (47249356).

53231144 is a wasteful number, since it uses less digits than its factorization.

53231144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44812 (or 44808 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 53231144 is about 7295.9676534371. The cubic root of 53231144 is about 376.1738482321.

Adding to 53231144 its reverse (44113235), we get a palindrome (97344379).

The spelling of 53231144 in words is "fifty-three million, two hundred thirty-one thousand, one hundred forty-four".