56573556564607 has 2 divisors, whose sum is σ = 56573556564608. Its totient is φ = 56573556564606.

The previous prime is 56573556564593. The next prime is 56573556564611. The reversal of 56573556564607 is 70646565537565.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56573556564607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56573556564677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28286778282303 + 28286778282304.

It is an arithmetic number, because the mean of its divisors is an integer number (28286778282304).

Almost surely, 2^{56573556564607} is an apocalyptic number.

56573556564607 is a deficient number, since it is larger than the sum of its proper divisors (1).

56573556564607 is an equidigital number, since it uses as much as digits as its factorization.

56573556564607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2381400000, while the sum is 70.

The spelling of 56573556564607 in words is "fifty-six trillion, five hundred seventy-three billion, five hundred fifty-six million, five hundred sixty-four thousand, six hundred seven".