53161857 has 24 divisors (see below), whose sum is σ = 87969024. Its totient is φ = 30305664.

The previous prime is 53161847. The next prime is 53161883. The reversal of 53161857 is 75816135.

53161857 is a `hidden beast` number, since 5 + 31 + 618 + 5 + 7 = 666.

53161857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53161857 - 2⁶ = 53161793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53161847) 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 23 ways as a sum of consecutive naturals, for example, 36648 + ... + 38070.

It is an arithmetic number, because the mean of its divisors is an integer number (3665376).

Almost surely, 2^53161857 is an apocalyptic number.

It is an amenable number.

53161857 is a deficient number, since it is larger than the sum of its proper divisors (34807167).

53161857 is a wasteful number, since it uses less digits than its factorization.

53161857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029 (or 2026 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 53161857 is about 7291.2177995174. The cubic root of 53161857 is about 376.0105649099.

The spelling of 53161857 in words is "fifty-three million, one hundred sixty-one thousand, eight hundred fifty-seven".