550611604 has 12 divisors (see below), whose sum is σ = 964287828. Its totient is φ = 275100800.

The previous prime is 550611601. The next prime is 550611613. The reversal of 550611604 is 406116055.

It can be written as a sum of positive squares in 2 ways, for example, as 268304400 + 282307204 = 16380^2 + 16802^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550611601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45127 + ... + 56014.

It is an arithmetic number, because the mean of its divisors is an integer number (80357319).

Almost surely, 2^550611604 is an apocalyptic number.

It is an amenable number.

550611604 is a deficient number, since it is larger than the sum of its proper divisors (413676224).

550611604 is a wasteful number, since it uses less digits than its factorization.

550611604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102506 (or 102504 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 550611604 is about 23465.1146172355. The cubic root of 550611604 is about 819.6248551696.

Adding to 550611604 its reverse (406116055), we get a palindrome (956727659).

It can be divided in two parts, 55061 and 1604, that added together give a palindrome (56665).

The spelling of 550611604 in words is "five hundred fifty million, six hundred eleven thousand, six hundred four".