550611550 has 36 divisors (see below), whose sum is σ = 1049885928. Its totient is φ = 214840000.

The previous prime is 550611497. The next prime is 550611587. The reversal of 550611550 is 55116055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 80775 + ... + 87325.

It is an arithmetic number, because the mean of its divisors is an integer number (29163498).

Almost surely, 2^550611550 is an apocalyptic number.

550611550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550611550 is a deficient number, since it is larger than the sum of its proper divisors (499274378).

550611550 is a wasteful number, since it uses less digits than its factorization.

550611550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6645 (or 6599 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 550611550 is about 23465.1134665912. The cubic root of 550611550 is about 819.6248283753.

The spelling of 550611550 in words is "five hundred fifty million, six hundred eleven thousand, five hundred fifty".