550015155 has 12 divisors (see below), whose sum is σ = 953359680. Its totient is φ = 293341392.

The previous prime is 550015153. The next prime is 550015163. The reversal of 550015155 is 551510055.

550015155 is a `hidden beast` number, since 5 + 500 + 1 + 5 + 155 = 666.

It is not a de Polignac number, because 550015155 - 2¹ = 550015153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550015153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6111235 + ... + 6111324.

It is an arithmetic number, because the mean of its divisors is an integer number (79446640).

Almost surely, 2^550015155 is an apocalyptic number.

550015155 is a deficient number, since it is larger than the sum of its proper divisors (403344525).

550015155 is a wasteful number, since it uses less digits than its factorization.

550015155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12222570 (or 12222567 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The square root of 550015155 is about 23452.4019025771. The cubic root of 550015155 is about 819.3287958733.

The spelling of 550015155 in words is "five hundred fifty million, fifteen thousand, one hundred fifty-five".