549555572 has 12 divisors (see below), whose sum is σ = 963393060. Its totient is φ = 274300416.

The previous prime is 549555557. The next prime is 549555623. The reversal of 549555572 is 275555945.

It can be written as a sum of positive squares in 2 ways, for example, as 390694756 + 158860816 = 19766^2 + 12604^2 .

It is a super-2 number, since 2×549555572² = 604022653432494368, which contains 22 as substring.

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, 116747 + ... + 121362.

It is an arithmetic number, because the mean of its divisors is an integer number (80282755).

Almost surely, 2^549555572 is an apocalyptic number.

It is an amenable number.

549555572 is a deficient number, since it is larger than the sum of its proper divisors (413837488).

549555572 is a wasteful number, since it uses less digits than its factorization.

549555572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238690 (or 238688 counting only the distinct ones).

The product of its digits is 1575000, while the sum is 47.

The square root of 549555572 is about 23442.6016474281. The cubic root of 549555572 is about 819.1005267000.

The spelling of 549555572 in words is "five hundred forty-nine million, five hundred fifty-five thousand, five hundred seventy-two".