550769920 has 36 divisors (see below), whose sum is σ = 1319269140. Its totient is φ = 220307456.

The previous prime is 550769911. The next prime is 550769941. The reversal of 550769920 is 29967055.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 92467456 + 458302464 = 9616^2 + 21408^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213865 + ... + 216424.

It is an arithmetic number, because the mean of its divisors is an integer number (36646365).

Almost surely, 2^550769920 is an apocalyptic number.

It is an amenable number.

550769920 is an abundant number, since it is smaller than the sum of its proper divisors (768499220).

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

550769920 is an equidigital number, since it uses as much as digits as its factorization.

550769920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430310 (or 430296 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 550769920 is about 23468.4878081226. The cubic root of 550769920 is about 819.7034025480.

The spelling of 550769920 in words is "five hundred fifty million, seven hundred sixty-nine thousand, nine hundred twenty".