553638660 has 48 divisors (see below), whose sum is σ = 1641378816. Its totient is φ = 138952192.

The previous prime is 553638653. The next prime is 553638661. The reversal of 553638660 is 66836355.

553638660 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (553638661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270372 + ... + 272411.

It is an arithmetic number, because the mean of its divisors is an integer number (34195392).

Almost surely, 2^553638660 is an apocalyptic number.

It is an amenable number.

553638660 is an abundant number, since it is smaller than the sum of its proper divisors (1087740156).

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

553638660 is a wasteful number, since it uses less digits than its factorization.

553638660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542812 (or 542810 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The square root of 553638660 is about 23529.5274070688. The cubic root of 553638660 is about 821.1241077131.

The spelling of 553638660 in words is "five hundred fifty-three million, six hundred thirty-eight thousand, six hundred sixty".