550500920 has 32 divisors (see below), whose sum is σ = 1239364800. Its totient is φ = 220069248.

The previous prime is 550500917. The next prime is 550500941. The reversal of 550500920 is 29005055.

It is a self number, because there is not a number n which added to its sum of digits gives 550500920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91361 + ... + 97199.

It is an arithmetic number, because the mean of its divisors is an integer number (38730150).

Almost surely, 2^550500920 is an apocalyptic number.

It is an amenable number.

550500920 is an abundant number, since it is smaller than the sum of its proper divisors (688863880).

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

550500920 is a wasteful number, since it uses less digits than its factorization.

550500920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8207 (or 8203 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 550500920 is about 23462.7560188483. The cubic root of 550500920 is about 819.5699311322.

Adding to 550500920 its reverse (29005055), we get a palindrome (579505975).

The spelling of 550500920 in words is "five hundred fifty million, five hundred thousand, nine hundred twenty".