56752616566 has 4 divisors (see below), whose sum is σ = 85128924852. Its totient is φ = 28376308282.

The previous prime is 56752616539. The next prime is 56752616579. The reversal of 56752616566 is 66561625765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66561625765 = 5 ⋅13312325153.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14188154140 + ... + 14188154143.

It is an arithmetic number, because the mean of its divisors is an integer number (21282231213).

Almost surely, 2^56752616566 is an apocalyptic number.

56752616566 is a deficient number, since it is larger than the sum of its proper divisors (28376308286).

56752616566 is a wasteful number, since it uses less digits than its factorization.

56752616566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28376308285.

The product of its digits is 13608000, while the sum is 55.

The spelling of 56752616566 in words is "fifty-six billion, seven hundred fifty-two million, six hundred sixteen thousand, five hundred sixty-six".