5520061656 has 32 divisors (see below), whose sum is σ = 15333505200. Its totient is φ = 1840020480.

The previous prime is 5520061649. The next prime is 5520061681. The reversal of 5520061656 is 6561600255.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 5520061656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12777705 + ... + 12778136.

Almost surely, 2^5520061656 is an apocalyptic number.

It is an amenable number.

5520061656 is an abundant number, since it is smaller than the sum of its proper divisors (9813443544).

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

5520061656 is a wasteful number, since it uses less digits than its factorization.

5520061656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25555856 (or 25555846 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 5520061656 is about 74297.1174138001. The cubic root of 5520061656 is about 1767.3177644887.

The spelling of 5520061656 in words is "five billion, five hundred twenty million, sixty-one thousand, six hundred fifty-six".