56632455540 has 72 divisors (see below), whose sum is σ = 171891975528. Its totient is φ = 15092593920.

The previous prime is 56632455527. The next prime is 56632455547. The reversal of 56632455540 is 4555423665.

56632455540 is a `hidden beast` number, since 5 + 6 + 63 + 2 + 45 + 5 + 540 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10284393744 + 46348061796 = 101412^2 + 215286^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56632455547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194734 + ... + 388826.

It is an arithmetic number, because the mean of its divisors is an integer number (2387388549).

Almost surely, 2^56632455540 is an apocalyptic number.

It is an amenable number.

56632455540 is an abundant number, since it is smaller than the sum of its proper divisors (115259519988).

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

56632455540 is a wasteful number, since it uses less digits than its factorization.

56632455540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195729 (or 195724 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

The spelling of 56632455540 in words is "fifty-six billion, six hundred thirty-two million, four hundred fifty-five thousand, five hundred forty".