550055506 has 64 divisors (see below), whose sum is σ = 1143668736. Its totient is φ = 191419200.

The previous prime is 550055501. The next prime is 550055521. The reversal of 550055506 is 605550055.

It is a super-2 number, since 2×550055506² = 605122119361832072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (550055501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57631 + ... + 66493.

It is an arithmetic number, because the mean of its divisors is an integer number (17869824).

Almost surely, 2^550055506 is an apocalyptic number.

550055506 is an abundant number, since it is smaller than the sum of its proper divisors (593613230).

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

550055506 is a wasteful number, since it uses less digits than its factorization.

550055506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8927.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 550055506 is about 23453.2621611579. The cubic root of 550055506 is about 819.3488316411.

The spelling of 550055506 in words is "five hundred fifty million, fifty-five thousand, five hundred six".