550481899 has 4 divisors (see below), whose sum is σ = 600525720. Its totient is φ = 500438080.

The previous prime is 550481891. The next prime is 550481917. The reversal of 550481899 is 998184055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 550481899 - 2³ = 550481891 is a prime.

It is a super-2 number, since 2×550481899² = 606060642253292402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550481891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25021894 + ... + 25021915.

It is an arithmetic number, because the mean of its divisors is an integer number (150131430).

Almost surely, 2^550481899 is an apocalyptic number.

550481899 is a deficient number, since it is larger than the sum of its proper divisors (50043821).

550481899 is a wasteful number, since it uses less digits than its factorization.

550481899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50043820.

The product of its (nonzero) digits is 518400, while the sum is 49.

The square root of 550481899 is about 23462.3506708088. The cubic root of 550481899 is about 819.5604917176.

The spelling of 550481899 in words is "five hundred fifty million, four hundred eighty-one thousand, eight hundred ninety-nine".