56445723567 has 6 divisors (see below), whose sum is σ = 81532711832. Its totient is φ = 37630482372.

The previous prime is 56445723463. The next prime is 56445723599. The reversal of 56445723567 is 76532754465.

56445723567 is a `hidden beast` number, since 5 + 6 + 4 + 4 + 5 + 72 + 3 + 567 = 666.

It is not a de Polignac number, because 56445723567 - 2⁸ = 56445723311 is a prime.

It is a super-2 number, since 2×56445723567² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56445723767) 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, 3135873523 + ... + 3135873540.

Almost surely, 2^56445723567 is an apocalyptic number.

56445723567 is a deficient number, since it is larger than the sum of its proper divisors (25086988265).

56445723567 is a wasteful number, since it uses less digits than its factorization.

56445723567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6271747069 (or 6271747066 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 54.

The spelling of 56445723567 in words is "fifty-six billion, four hundred forty-five million, seven hundred twenty-three thousand, five hundred sixty-seven".