56574447565 has 4 divisors (see below), whose sum is σ = 67889337084. Its totient is φ = 45259558048.

The previous prime is 56574447541. The next prime is 56574447583.

56574447565 is nontrivially palindromic in base 10.

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 9838060969 + 46736386596 = 99187^2 + 216186^2 .

It is a cyclic number.

It is not a de Polignac number, because 56574447565 - 2⁷ = 56574447437 is a prime.

It is a Duffinian number.

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 in 3 ways as a sum of consecutive naturals, for example, 5657444752 + ... + 5657444761.

It is an arithmetic number, because the mean of its divisors is an integer number (16972334271).

Almost surely, 2^56574447565 is an apocalyptic number.

It is an amenable number.

56574447565 is a deficient number, since it is larger than the sum of its proper divisors (11314889519).

56574447565 is a wasteful number, since it uses less digits than its factorization.

56574447565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11314889518.

The product of its digits is 70560000, while the sum is 58.

The spelling of 56574447565 in words is "fifty-six billion, five hundred seventy-four million, four hundred forty-seven thousand, five hundred sixty-five".