56916757045 has 4 divisors (see below), whose sum is σ = 68300108460. Its totient is φ = 45533405632.

The previous prime is 56916757043. The next prime is 56916757087. The reversal of 56916757045 is 54075761965.

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 14576698756 + 42340058289 = 120734^2 + 205767^2 .

It is a cyclic number.

It is not a de Polignac number, because 56916757045 - 2¹ = 56916757043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56916757043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5691675700 + ... + 5691675709.

It is an arithmetic number, because the mean of its divisors is an integer number (17075027115).

Almost surely, 2^56916757045 is an apocalyptic number.

It is an amenable number.

56916757045 is a deficient number, since it is larger than the sum of its proper divisors (11383351415).

56916757045 is a wasteful number, since it uses less digits than its factorization.

56916757045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11383351414.

The product of its (nonzero) digits is 7938000, while the sum is 55.

The spelling of 56916757045 in words is "fifty-six billion, nine hundred sixteen million, seven hundred fifty-seven thousand, forty-five".