53312631 has 8 divisors (see below), whose sum is σ = 71165184. Its totient is φ = 35500920.

The previous prime is 53312593. The next prime is 53312641. The reversal of 53312631 is 13621335.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53312631 - 2¹⁴ = 53296247 is a prime.

It is a super-2 number, since 2×53312631² = 5684473248284322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53312641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7021 + ... + 12486.

It is an arithmetic number, because the mean of its divisors is an integer number (8895648).

Almost surely, 2^53312631 is an apocalyptic number.

53312631 is a deficient number, since it is larger than the sum of its proper divisors (17852553).

53312631 is a wasteful number, since it uses less digits than its factorization.

53312631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20421.

The product of its digits is 1620, while the sum is 24.

The square root of 53312631 is about 7301.5499039587. The cubic root of 53312631 is about 376.3657011454.

Adding to 53312631 its reverse (13621335), we get a palindrome (66933966).

The spelling of 53312631 in words is "fifty-three million, three hundred twelve thousand, six hundred thirty-one".