53316031 has 4 divisors (see below), whose sum is σ = 54616464. Its totient is φ = 52015600.

The previous prime is 53316019. The next prime is 53316041. The reversal of 53316031 is 13061335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53316031 is a prime.

It is a super-2 number, since 2×53316031² = 5685198323185922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53315993 and 53316011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53316041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650155 + ... + 650236.

It is an arithmetic number, because the mean of its divisors is an integer number (13654116).

Almost surely, 2^53316031 is an apocalyptic number.

53316031 is a deficient number, since it is larger than the sum of its proper divisors (1300433).

53316031 is a wasteful number, since it uses less digits than its factorization.

53316031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300432.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 53316031 is about 7301.7827275262. The cubic root of 53316031 is about 376.3737018521.

Adding to 53316031 its reverse (13061335), we get a palindrome (66377366).

The spelling of 53316031 in words is "fifty-three million, three hundred sixteen thousand, thirty-one".