550661215 has 16 divisors (see below), whose sum is σ = 734582016. Its totient is φ = 393523200.

The previous prime is 550661207. The next prime is 550661261. The reversal of 550661215 is 512166055.

550661215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550661215 - 2³ = 550661207 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134626 + ... + 138655.

It is an arithmetic number, because the mean of its divisors is an integer number (45911376).

Almost surely, 2^550661215 is an apocalyptic number.

550661215 is a deficient number, since it is larger than the sum of its proper divisors (183920801).

550661215 is a wasteful number, since it uses less digits than its factorization.

550661215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273330.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 550661215 is about 23466.1717158978. The cubic root of 550661215 is about 819.6494709406.

The spelling of 550661215 in words is "five hundred fifty million, six hundred sixty-one thousand, two hundred fifteen".