5491605204 has 18 divisors (see below), whose sum is σ = 13881557690. Its totient is φ = 1830535056.

The previous prime is 5491605179. The next prime is 5491605211. The reversal of 5491605204 is 4025061945.

5491605204 is a `hidden beast` number, since 5 + 49 + 1 + 605 + 2 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3831857604 + 1659747600 = 61902^2 + 40740^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 152544589 = 5491605204 / (5 + 4 + 9 + 1 + 6 + 0 + 5 + 2 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76272259 + ... + 76272330.

Almost surely, 2^5491605204 is an apocalyptic number.

It is an amenable number.

5491605204 is an abundant number, since it is smaller than the sum of its proper divisors (8389952486).

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

5491605204 is a wasteful number, since it uses less digits than its factorization.

5491605204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152544599 (or 152544594 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 5491605204 is about 74105.3655547289. The cubic root of 5491605204 is about 1764.2756329589.

The spelling of 5491605204 in words is "five billion, four hundred ninety-one million, six hundred five thousand, two hundred four".