56107007761 has 4 divisors (see below), whose sum is σ = 64122294592. Its totient is φ = 48091720932.

The previous prime is 56107007743. The next prime is 56107007767. The reversal of 56107007761 is 16770070165.

56107007761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56107007761 - 2⁵ = 56107007729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56107007767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4007643405 + ... + 4007643418.

It is an arithmetic number, because the mean of its divisors is an integer number (16030573648).

Almost surely, 2^56107007761 is an apocalyptic number.

It is an amenable number.

56107007761 is a deficient number, since it is larger than the sum of its proper divisors (8015286831).

56107007761 is an equidigital number, since it uses as much as digits as its factorization.

56107007761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015286830.

The product of its (nonzero) digits is 61740, while the sum is 40.

The spelling of 56107007761 in words is "fifty-six billion, one hundred seven million, seven thousand, seven hundred sixty-one".