553556660 has 12 divisors (see below), whose sum is σ = 1162469028. Its totient is φ = 221422656.

The previous prime is 553556651. The next prime is 553556671. The reversal of 553556660 is 66655355.

It can be written as a sum of positive squares in 2 ways, for example, as 208860304 + 344696356 = 14452^2 + 18566^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13838897 + ... + 13838936.

It is an arithmetic number, because the mean of its divisors is an integer number (96872419).

Almost surely, 2^553556660 is an apocalyptic number.

It is an amenable number.

553556660 is an abundant number, since it is smaller than the sum of its proper divisors (608912368).

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

553556660 is a wasteful number, since it uses less digits than its factorization.

553556660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27677842 (or 27677840 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 41.

The square root of 553556660 is about 23527.7848511074. The cubic root of 553556660 is about 821.0835665285.

The spelling of 553556660 in words is "five hundred fifty-three million, five hundred fifty-six thousand, six hundred sixty".