56623533849 has 9 divisors (see below), whose sum is σ = 81790580053. Its totient is φ = 37748546652.

The previous prime is 56623533773. The next prime is 56623533851. The reversal of 56623533849 is 94833532665.

The square root of 56623533849 is 237957.

It is a perfect power (a square), and thus also a powerful number.

56623533849 is a `hidden beast` number, since 5 + 6 + 6 + 23 + 533 + 84 + 9 = 666.

56623533849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 56623533849 - 2⁷ = 56623533721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56623533795 and 56623533804.

It is not an unprimeable number, because it can be changed into a prime (56623533899) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 674212 + ... + 753530.

Almost surely, 2^56623533849 is an apocalyptic number.

56623533849 is the 237957-th square number.

56623533849 is the 118979-th centered octagonal number.

It is an amenable number.

56623533849 is a deficient number, since it is larger than the sum of its proper divisors (25167046204).

56623533849 is an frugal number, since it uses more digits than its factorization.

56623533849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158644 (or 79322 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 54.

The spelling of 56623533849 in words is "fifty-six billion, six hundred twenty-three million, five hundred thirty-three thousand, eight hundred forty-nine".