53302431 has 48 divisors (see below), whose sum is σ = 91915776. Its totient is φ = 26851968.

The previous prime is 53302427. The next prime is 53302433. The reversal of 53302431 is 13420335.

It is not a de Polignac number, because 53302431 - 2² = 53302427 is a prime.

It is a super-2 number, since 2×53302431² = 5682298301019522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 53302398 and 53302407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53302433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81301 + ... + 81953.

It is an arithmetic number, because the mean of its divisors is an integer number (1914912).

Almost surely, 2^53302431 is an apocalyptic number.

53302431 is a deficient number, since it is larger than the sum of its proper divisors (38613345).

53302431 is a wasteful number, since it uses less digits than its factorization.

53302431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 53302431 is about 7300.8513887080. The cubic root of 53302431 is about 376.3416969839.

Adding to 53302431 its reverse (13420335), we get a palindrome (66722766).

The spelling of 53302431 in words is "fifty-three million, three hundred two thousand, four hundred thirty-one".