56653635556 has 18 divisors (see below), whose sum is σ = 115330615638. Its totient is φ = 24280129440.

The previous prime is 56653635553. The next prime is 56653635601. The reversal of 56653635556 is 65553635665.

It can be written as a sum of positive squares in only one way, i.e., 43841659456 + 12811976100 = 209384^2 + 113190^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56653635497 and 56653635506.

It is not an unprimeable number, because it can be changed into a prime (56653635551) 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, 144524385 + ... + 144524776.

Almost surely, 2^56653635556 is an apocalyptic number.

It is an amenable number.

56653635556 is an abundant number, since it is smaller than the sum of its proper divisors (58676980082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56653635556 is a wasteful number, since it uses less digits than its factorization.

56653635556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289049179 (or 289049170 counting only the distinct ones).

The product of its digits is 36450000, while the sum is 55.

The spelling of 56653635556 in words is "fifty-six billion, six hundred fifty-three million, six hundred thirty-five thousand, five hundred fifty-six".