56107687577 has 4 divisors (see below), whose sum is σ = 57027485796. Its totient is φ = 55187889360.

The previous prime is 56107687567. The next prime is 56107687583. The reversal of 56107687577 is 77578670165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1450391056 + 54657296521 = 38084^2 + 233789^2 .

It is a cyclic number.

It is not a de Polignac number, because 56107687577 - 2¹⁰ = 56107686553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56107687567) 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, 459899018 + ... + 459899139.

It is an arithmetic number, because the mean of its divisors is an integer number (14256871449).

Almost surely, 2^56107687577 is an apocalyptic number.

It is an amenable number.

56107687577 is a deficient number, since it is larger than the sum of its proper divisors (919798219).

56107687577 is an equidigital number, since it uses as much as digits as its factorization.

56107687577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919798218.

The product of its (nonzero) digits is 17287200, while the sum is 59.

The spelling of 56107687577 in words is "fifty-six billion, one hundred seven million, six hundred eighty-seven thousand, five hundred seventy-seven".