53086831 has 4 divisors (see below), whose sum is σ = 60670672. Its totient is φ = 45502992.

The previous prime is 53086807. The next prime is 53086853. The reversal of 53086831 is 13868035.

It is a happy number.

53086831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 53086831 - 2⁵ = 53086799 is a prime.

It is a super-2 number, since 2×53086831² = 5636423251245122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53086861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3791910 + ... + 3791923.

It is an arithmetic number, because the mean of its divisors is an integer number (15167668).

Almost surely, 2^53086831 is an apocalyptic number.

53086831 is a deficient number, since it is larger than the sum of its proper divisors (7583841).

53086831 is an equidigital number, since it uses as much as digits as its factorization.

53086831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583840.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 53086831 is about 7286.0710262802. The cubic root of 53086831 is about 375.8335968629.

Subtracting from 53086831 its reverse (13868035), we obtain a triangular number (39218796 = T₈₈₅₆).

The spelling of 53086831 in words is "fifty-three million, eighty-six thousand, eight hundred thirty-one".