57564752566 has 16 divisors (see below), whose sum is σ = 87589232640. Its totient is φ = 28369584360.

The previous prime is 57564752563. The next prime is 57564752591. The reversal of 57564752566 is 66525746575.

It is a happy number.

57564752566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57564752566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57564752563) 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, 217590 + ... + 403081.

It is an arithmetic number, because the mean of its divisors is an integer number (5474327040).

Almost surely, 2^57564752566 is an apocalyptic number.

57564752566 is a deficient number, since it is larger than the sum of its proper divisors (30024480074).

57564752566 is a wasteful number, since it uses less digits than its factorization.

57564752566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621339.

The product of its digits is 52920000, while the sum is 58.

The spelling of 57564752566 in words is "fifty-seven billion, five hundred sixty-four million, seven hundred fifty-two thousand, five hundred sixty-six".