53324431 has 16 divisors (see below), whose sum is σ = 57635200. Its totient is φ = 49183200.

The previous prime is 53324423. The next prime is 53324441. The reversal of 53324431 is 13442335.

It is a cyclic number.

It is not a de Polignac number, because 53324431 - 2³ = 53324423 is a prime.

It is a super-2 number, since 2×53324431² = 5686989882947522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53324396 and 53324405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53324441) 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, 160936 + ... + 161266.

It is an arithmetic number, because the mean of its divisors is an integer number (3602200).

Almost surely, 2^53324431 is an apocalyptic number.

53324431 is a deficient number, since it is larger than the sum of its proper divisors (4310769).

53324431 is a wasteful number, since it uses less digits than its factorization.

53324431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550.

The product of its digits is 4320, while the sum is 25.

The square root of 53324431 is about 7302.3579068682. The cubic root of 53324431 is about 376.3934668460.

Adding to 53324431 its reverse (13442335), we get a palindrome (66766766).

It can be divided in two parts, 533 and 24431, that added together give a square (24964 = 158²).

The spelling of 53324431 in words is "fifty-three million, three hundred twenty-four thousand, four hundred thirty-one".