53351831 has 16 divisors (see below), whose sum is σ = 61687584. Its totient is φ = 45702144.

The previous prime is 53351827. The next prime is 53351869. The reversal of 53351831 is 13815335.

It is a cyclic number.

It is not a de Polignac number, because 53351831 - 2² = 53351827 is a prime.

It is a super-2 number, since 2×53351831² = 5692835742105122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53351794 and 53351803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53351821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14480 + ... + 17786.

It is an arithmetic number, because the mean of its divisors is an integer number (3855474).

Almost surely, 2^53351831 is an apocalyptic number.

53351831 is a deficient number, since it is larger than the sum of its proper divisors (8335753).

53351831 is a wasteful number, since it uses less digits than its factorization.

53351831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410.

The product of its digits is 5400, while the sum is 29.

The square root of 53351831 is about 7304.2337722721. The cubic root of 53351831 is about 376.4579239493.

It can be divided in two parts, 5 and 3351831, that multiplied together give a triangular number (16759155 = T₅₇₈₉).

The spelling of 53351831 in words is "fifty-three million, three hundred fifty-one thousand, eight hundred thirty-one".