53015431 has 16 divisors (see below), whose sum is σ = 62726400. Its totient is φ = 43864128.

The previous prime is 53015429. The next prime is 53015441. The reversal of 53015431 is 13451035.

It is a happy number.

It is not a de Polignac number, because 53015431 - 2¹ = 53015429 is a prime.

It is a super-2 number, since 2×53015431² = 5621271848231522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53015441) 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, 25800 + ... + 27778.

It is an arithmetic number, because the mean of its divisors is an integer number (3920400).

Almost surely, 2^53015431 is an apocalyptic number.

53015431 is a deficient number, since it is larger than the sum of its proper divisors (9710969).

53015431 is a wasteful number, since it uses less digits than its factorization.

53015431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 53015431 is about 7281.1696175821. The cubic root of 53015431 is about 375.6650267561.

Adding to 53015431 its reverse (13451035), we get a palindrome (66466466).

The spelling of 53015431 in words is "fifty-three million, fifteen thousand, four hundred thirty-one".