56206561023 has 6 divisors (see below), whose sum is σ = 81187254824. Its totient is φ = 37471040676.

The previous prime is 56206560989. The next prime is 56206561027. The reversal of 56206561023 is 32016560265.

It is a happy number.

56206561023 is a `hidden beast` number, since 5 + 620 + 6 + 5 + 6 + 1 + 0 + 23 = 666.

It is not a de Polignac number, because 56206561023 - 2¹² = 56206556927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56206561027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3122586715 + ... + 3122586732.

Almost surely, 2^56206561023 is an apocalyptic number.

56206561023 is a deficient number, since it is larger than the sum of its proper divisors (24980693801).

56206561023 is a wasteful number, since it uses less digits than its factorization.

56206561023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6245173453 (or 6245173450 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 56206561023 in words is "fifty-six billion, two hundred six million, five hundred sixty-one thousand, twenty-three".