56606557572 has 36 divisors (see below), whose sum is σ = 143879360716. Its totient is φ = 18764602560.

The previous prime is 56606557559. The next prime is 56606557613. The reversal of 56606557572 is 27575560665.

It is a happy number.

56606557572 is a `hidden beast` number, since 5 + 6 + 6 + 0 + 65 + 5 + 7 + 572 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25877869956 + 30728687616 = 160866^2 + 175296^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4337143 + ... + 4350174.

Almost surely, 2^56606557572 is an apocalyptic number.

It is an amenable number.

56606557572 is an abundant number, since it is smaller than the sum of its proper divisors (87272803144).

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

56606557572 is a wasteful number, since it uses less digits than its factorization.

56606557572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8687508 (or 8687503 counting only the distinct ones).

The product of its (nonzero) digits is 13230000, while the sum is 54.

The spelling of 56606557572 in words is "fifty-six billion, six hundred six million, five hundred fifty-seven thousand, five hundred seventy-two".