56602020653 has 2 divisors, whose sum is σ = 56602020654. Its totient is φ = 56602020652.

The previous prime is 56602020589. The next prime is 56602020749. The reversal of 56602020653 is 35602020665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44577143689 + 12024876964 = 211133^2 + 109658^2 .

It is a cyclic number.

It is not a de Polignac number, because 56602020653 - 2⁶ = 56602020589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56602020953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28301010326 + 28301010327.

It is an arithmetic number, because the mean of its divisors is an integer number (28301010327).

Almost surely, 2^56602020653 is an apocalyptic number.

It is an amenable number.

56602020653 is a deficient number, since it is larger than the sum of its proper divisors (1).

56602020653 is an equidigital number, since it uses as much as digits as its factorization.

56602020653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 56602020653 in words is "fifty-six billion, six hundred two million, twenty thousand, six hundred fifty-three".