56561630633 has 16 divisors (see below), whose sum is σ = 57250537344. Its totient is φ = 55877831040.

The previous prime is 56561630623. The next prime is 56561630641. The reversal of 56561630633 is 33603616565.

It is a cyclic number.

It is not a de Polignac number, because 56561630633 - 2⁴ = 56561630617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56561630623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32487143 + ... + 32488883.

It is an arithmetic number, because the mean of its divisors is an integer number (3578158584).

Almost surely, 2^56561630633 is an apocalyptic number.

It is an amenable number.

56561630633 is a deficient number, since it is larger than the sum of its proper divisors (688906711).

56561630633 is a wasteful number, since it uses less digits than its factorization.

56561630633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992.

The product of its (nonzero) digits is 874800, while the sum is 44.

The spelling of 56561630633 in words is "fifty-six billion, five hundred sixty-one million, six hundred thirty thousand, six hundred thirty-three".