549995634 has 48 divisors (see below), whose sum is σ = 1207409112. Its totient is φ = 180923904.

The previous prime is 549995623. The next prime is 549995647. The reversal of 549995634 is 436599945.

549995634 is a `hidden beast` number, since 5 + 499 + 95 + 63 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 50339025 + 499656609 = 7095^2 + 22353^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 644352 + ... + 645204.

Almost surely, 2^549995634 is an apocalyptic number.

549995634 is an abundant number, since it is smaller than the sum of its proper divisors (657413478).

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

549995634 is a wasteful number, since it uses less digits than its factorization.

549995634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1288 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The square root of 549995634 is about 23451.9857154997. The cubic root of 549995634 is about 819.3191026212.

The spelling of 549995634 in words is "five hundred forty-nine million, nine hundred ninety-five thousand, six hundred thirty-four".