550215550404 has 162 divisors, whose sum is σ = 1599845550030. Its totient is φ = 159337930752.

The previous prime is 550215550369. The next prime is 550215550441. The reversal of 550215550404 is 404055512055.

550215550404 is a `hidden beast` number, since 5 + 50 + 2 + 15 + 550 + 40 + 4 = 666.

It can be written as a sum of positive squares in 9 ways, for example, as 248649827904 + 301565722500 = 498648^2 + 549150^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1601812 + ... + 1914740.

It is an arithmetic number, because the mean of its divisors is an integer number (9875589815).

Almost surely, 2^550215550404 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 550215550404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (799922775015).

550215550404 is an abundant number, since it is smaller than the sum of its proper divisors (1049629999626).

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

550215550404 is a wasteful number, since it uses less digits than its factorization.

550215550404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312999 (or 312964 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 36.

The spelling of 550215550404 in words is "five hundred fifty billion, two hundred fifteen million, five hundred fifty thousand, four hundred four".