53173831 has 2 divisors, whose sum is σ = 53173832. Its totient is φ = 53173830.

The previous prime is 53173823. The next prime is 53173871. The reversal of 53173831 is 13837135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53173831 - 2³ = 53173823 is a prime.

It is a super-2 number, since 2×53173831² = 5654912606433122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 53173793 and 53173802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53173801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26586915 + 26586916.

It is an arithmetic number, because the mean of its divisors is an integer number (26586916).

Almost surely, 2^53173831 is an apocalyptic number.

53173831 is a deficient number, since it is larger than the sum of its proper divisors (1).

53173831 is an equidigital number, since it uses as much as digits as its factorization.

53173831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 53173831 is about 7292.0388781191. The cubic root of 53173831 is about 376.0387932473.

The spelling of 53173831 in words is "fifty-three million, one hundred seventy-three thousand, eight hundred thirty-one".