549975090 has 64 divisors (see below), whose sum is σ = 1527644160. Its totient is φ = 124113600.

The previous prime is 549975079. The next prime is 549975113. The reversal of 549975090 is 90579945.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15 + ... + 33165.

It is an arithmetic number, because the mean of its divisors is an integer number (23869440).

Almost surely, 2^549975090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549975090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763822080).

549975090 is an abundant number, since it is smaller than the sum of its proper divisors (977669070).

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

549975090 is a wasteful number, since it uses less digits than its factorization.

549975090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33247.

The product of its (nonzero) digits is 510300, while the sum is 48.

The square root of 549975090 is about 23451.5477101193. The cubic root of 549975090 is about 819.3089011455.

The spelling of 549975090 in words is "five hundred forty-nine million, nine hundred seventy-five thousand, ninety".