550156999 has 16 divisors (see below), whose sum is σ = 656896320. Its totient is φ = 450777600.

The previous prime is 550156993. The next prime is 550157011. The reversal of 550156999 is 999651055.

550156999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550156999 - 2³ = 550156991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550156991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7087 + ... + 33919.

It is an arithmetic number, because the mean of its divisors is an integer number (41056020).

Almost surely, 2^550156999 is an apocalyptic number.

550156999 is a deficient number, since it is larger than the sum of its proper divisors (106739321).

550156999 is a wasteful number, since it uses less digits than its factorization.

550156999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26970.

The product of its (nonzero) digits is 546750, while the sum is 49.

The square root of 550156999 is about 23455.4257902090. The cubic root of 550156999 is about 819.3992223477.

It can be divided in two parts, 550156 and 999, that added together give a palindrome (551155).

The spelling of 550156999 in words is "five hundred fifty million, one hundred fifty-six thousand, nine hundred ninety-nine".