56672563573 has 2 divisors, whose sum is σ = 56672563574. Its totient is φ = 56672563572.

The previous prime is 56672563567. The next prime is 56672563637. The reversal of 56672563573 is 37536527665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36006201009 + 20666362564 = 189753^2 + 143758^2 .

It is a cyclic number.

It is not a de Polignac number, because 56672563573 - 2⁹ = 56672563061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56672563513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28336281786 + 28336281787.

It is an arithmetic number, because the mean of its divisors is an integer number (28336281787).

Almost surely, 2^56672563573 is an apocalyptic number.

It is an amenable number.

56672563573 is a deficient number, since it is larger than the sum of its proper divisors (1).

56672563573 is an equidigital number, since it uses as much as digits as its factorization.

56672563573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814000, while the sum is 55.

The spelling of 56672563573 in words is "fifty-six billion, six hundred seventy-two million, five hundred sixty-three thousand, five hundred seventy-three".