550012155 has 48 divisors (see below), whose sum is σ = 1105504512. Its totient is φ = 228571200.

The previous prime is 550012139. The next prime is 550012181. The reversal of 550012155 is 551210055.

It is not a de Polignac number, because 550012155 - 2⁴ = 550012139 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 8941 + ... + 34350.

It is an arithmetic number, because the mean of its divisors is an integer number (23031344).

Almost surely, 2^550012155 is an apocalyptic number.

550012155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

550012155 is an abundant number, since it is smaller than the sum of its proper divisors (555492357).

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

550012155 is a wasteful number, since it uses less digits than its factorization.

550012155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43328 (or 43317 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 550012155 is about 23452.3379431561. The cubic root of 550012155 is about 819.3273062229.

The spelling of 550012155 in words is "five hundred fifty million, twelve thousand, one hundred fifty-five".