550559690 has 32 divisors (see below), whose sum is σ = 1035970560. Its totient is φ = 210412800.

The previous prime is 550559663. The next prime is 550559699. The reversal of 550559690 is 96955055.

550559690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×550559690² = 606231944505792200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550559699) 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, 13250 + ... + 35730.

It is an arithmetic number, because the mean of its divisors is an integer number (32374080).

Almost surely, 2^550559690 is an apocalyptic number.

550559690 is a deficient number, since it is larger than the sum of its proper divisors (485410870).

550559690 is a wasteful number, since it uses less digits than its factorization.

550559690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22598.

The product of its (nonzero) digits is 303750, while the sum is 44.

The square root of 550559690 is about 23464.0083958389. The cubic root of 550559690 is about 819.5990951228.

The spelling of 550559690 in words is "five hundred fifty million, five hundred fifty-nine thousand, six hundred ninety".