550188864 has 168 divisors, whose sum is σ = 1626168960. Its totient is φ = 177795072.

The previous prime is 550188857. The next prime is 550188887. The reversal of 550188864 is 468881055.

550188864 is a `hidden beast` number, since 5 + 501 + 8 + 88 + 64 = 666.

It is a super-2 number, since 2×550188864² = 605415572139220992, 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 23 ways as a sum of consecutive naturals, for example, 4868872 + ... + 4868984.

Almost surely, 2^550188864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550188864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813084480).

550188864 is an abundant number, since it is smaller than the sum of its proper divisors (1075980096).

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

550188864 is a wasteful number, since it uses less digits than its factorization.

550188864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The square root of 550188864 is about 23456.1050475137. The cubic root of 550188864 is about 819.4150418635.

The spelling of 550188864 in words is "five hundred fifty million, one hundred eighty-eight thousand, eight hundred sixty-four".