53431323 has 64 divisors (see below), whose sum is σ = 88833024. Its totient is φ = 28160000.

The previous prime is 53431297. The next prime is 53431349. The reversal of 53431323 is 32313435.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53431297) and next prime (53431349).

It is not a de Polignac number, because 53431323 - 2¹⁷ = 53300251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53431293 and 53431302.

It is not an unprimeable number, because it can be changed into a prime (53431373) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 528973 + ... + 529073.

It is an arithmetic number, because the mean of its divisors is an integer number (1388016).

Almost surely, 2^53431323 is an apocalyptic number.

53431323 is a deficient number, since it is larger than the sum of its proper divisors (35401701).

53431323 is a wasteful number, since it uses less digits than its factorization.

53431323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196.

The product of its digits is 3240, while the sum is 24.

The square root of 53431323 is about 7309.6732485112. The cubic root of 53431323 is about 376.6448000289.

Adding to 53431323 its reverse (32313435), we get a palindrome (85744758).

It can be divided in two parts, 5343 and 1323, that added together give a palindrome (6666).

The spelling of 53431323 in words is "fifty-three million, four hundred thirty-one thousand, three hundred twenty-three".