56622318787 has 4 divisors (see below), whose sum is σ = 56622876336. Its totient is φ = 56621761240.

The previous prime is 56622318763. The next prime is 56622318793. The reversal of 56622318787 is 78781322665.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56622318787 - 2¹⁹ = 56621794499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56622318757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78463 + ... + 345544.

It is an arithmetic number, because the mean of its divisors is an integer number (14155719084).

Almost surely, 2^56622318787 is an apocalyptic number.

56622318787 is a deficient number, since it is larger than the sum of its proper divisors (557549).

56622318787 is a wasteful number, since it uses less digits than its factorization.

56622318787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557548.

The product of its digits is 6773760, while the sum is 55.

The spelling of 56622318787 in words is "fifty-six billion, six hundred twenty-two million, three hundred eighteen thousand, seven hundred eighty-seven".