550156998 has 16 divisors (see below), whose sum is σ = 1110052656. Its totient is φ = 181762560.

The previous prime is 550156993. The next prime is 550157011. The reversal of 550156998 is 899651055.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 405043 + ... + 406398.

It is an arithmetic number, because the mean of its divisors is an integer number (69378291).

Almost surely, 2^550156998 is an apocalyptic number.

550156998 is an abundant number, since it is smaller than the sum of its proper divisors (559895658).

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

550156998 is a wasteful number, since it uses less digits than its factorization.

550156998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811559.

The product of its (nonzero) digits is 486000, while the sum is 48.

The square root of 550156998 is about 23455.4257688919. The cubic root of 550156998 is about 819.3992218512.

The spelling of 550156998 in words is "five hundred fifty million, one hundred fifty-six thousand, nine hundred ninety-eight".