57564838806 has 16 divisors (see below), whose sum is σ = 117081028800. Its totient is φ = 18863054408.

The previous prime is 57564838801. The next prime is 57564838811. The reversal of 57564838806 is 60883846575.

It is an interprime number because it is at equal distance from previous prime (57564838801) and next prime (57564838811).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57564838806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57564838801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81305916 + ... + 81306623.

It is an arithmetic number, because the mean of its divisors is an integer number (7317564300).

Almost surely, 2^57564838806 is an apocalyptic number.

57564838806 is an abundant number, since it is smaller than the sum of its proper divisors (59516189994).

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

57564838806 is a wasteful number, since it uses less digits than its factorization.

57564838806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162612603.

The product of its (nonzero) digits is 38707200, while the sum is 60.

The spelling of 57564838806 in words is "fifty-seven billion, five hundred sixty-four million, eight hundred thirty-eight thousand, eight hundred six".