550115155 has 16 divisors (see below), whose sum is σ = 699909984. Its totient is φ = 413647360.

The previous prime is 550115131. The next prime is 550115161. The reversal of 550115155 is 551511055.

It is not a de Polignac number, because 550115155 - 2²³ = 541726547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65844 + ... + 73726.

It is an arithmetic number, because the mean of its divisors is an integer number (43744374).

Almost surely, 2^550115155 is an apocalyptic number.

550115155 is a deficient number, since it is larger than the sum of its proper divisors (149794829).

550115155 is a wasteful number, since it uses less digits than its factorization.

550115155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8726.

The product of its (nonzero) digits is 3125, while the sum is 28.

The square root of 550115155 is about 23454.5337834714. The cubic root of 550115155 is about 819.3784477867.

The spelling of 550115155 in words is "five hundred fifty million, one hundred fifteen thousand, one hundred fifty-five".