550499990 has 48 divisors (see below), whose sum is σ = 1027206576. Its totient is φ = 212347200.

The previous prime is 550499987. The next prime is 550500007. The reversal of 550499990 is 99994055.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4202225 + ... + 4202355.

It is an arithmetic number, because the mean of its divisors is an integer number (21400137).

Almost surely, 2^550499990 is an apocalyptic number.

550499990 is a deficient number, since it is larger than the sum of its proper divisors (476706586).

550499990 is a wasteful number, since it uses less digits than its factorization.

550499990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 656100, while the sum is 50.

The square root of 550499990 is about 23462.7362001963. The cubic root of 550499990 is about 819.5694696128.

The spelling of 550499990 in words is "five hundred fifty million, four hundred ninety-nine thousand, nine hundred ninety".