57163836 has 12 divisors (see below), whose sum is σ = 133382312. Its totient is φ = 19054608.

The previous prime is 57163831. The next prime is 57163859. The reversal of 57163836 is 63836175.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 57163794 and 57163803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57163831) 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, 2381815 + ... + 2381838.

Almost surely, 2^57163836 is an apocalyptic number.

It is an amenable number.

57163836 is an abundant number, since it is smaller than the sum of its proper divisors (76218476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57163836 is a wasteful number, since it uses less digits than its factorization.

57163836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763660 (or 4763658 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 57163836 is about 7560.6769538184. The cubic root of 57163836 is about 385.2184873304.

The spelling of 57163836 in words is "fifty-seven million, one hundred sixty-three thousand, eight hundred thirty-six".