550980690 has 64 divisors (see below), whose sum is σ = 1462599936. Its totient is φ = 131956992.

The previous prime is 550980637. The next prime is 550980697. The reversal of 550980690 is 96089055.

It is a super-2 number, since 2×550980690² = 607159441505752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550980697) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4662 + ... + 33521.

It is an arithmetic number, because the mean of its divisors is an integer number (22853124).

Almost surely, 2^550980690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550980690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731299968).

550980690 is an abundant number, since it is smaller than the sum of its proper divisors (911619246).

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

550980690 is a wasteful number, since it uses less digits than its factorization.

550980690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38243.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 550980690 is about 23472.9778681785. The cubic root of 550980690 is about 819.8079512570.

The spelling of 550980690 in words is "five hundred fifty million, nine hundred eighty thousand, six hundred ninety".