555491164 has 12 divisors (see below), whose sum is σ = 985426624. Its totient is φ = 273940704.

The previous prime is 555491159. The next prime is 555491173. The reversal of 555491164 is 461194555.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 950892 + ... + 951475.

Almost surely, 2^555491164 is an apocalyptic number.

It is an amenable number.

555491164 is a deficient number, since it is larger than the sum of its proper divisors (429935460).

555491164 is a wasteful number, since it uses less digits than its factorization.

555491164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902444 (or 1902442 counting only the distinct ones).

The product of its digits is 108000, while the sum is 40.

The square root of 555491164 is about 23568.8600488017. The cubic root of 555491164 is about 822.0389295700.

The spelling of 555491164 in words is "five hundred fifty-five million, four hundred ninety-one thousand, one hundred sixty-four".