555559990 has 16 divisors (see below), whose sum is σ = 1032266880. Its totient is φ = 215055360.

The previous prime is 555559891. The next prime is 555560023. The reversal of 555559990 is 99955555.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895755 + ... + 896374.

It is an arithmetic number, because the mean of its divisors is an integer number (64516680).

Almost surely, 2^555559990 is an apocalyptic number.

555559990 is a deficient number, since it is larger than the sum of its proper divisors (476706890).

555559990 is a wasteful number, since it uses less digits than its factorization.

555559990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792167.

The product of its (nonzero) digits is 2278125, while the sum is 52.

The square root of 555559990 is about 23570.3201081360. The cubic root of 555559990 is about 822.0728786938.

The spelling of 555559990 in words is "five hundred fifty-five million, five hundred fifty-nine thousand, nine hundred ninety".