550000720 has 40 divisors (see below), whose sum is σ = 1287361800. Its totient is φ = 218519040.

The previous prime is 550000709. The next prime is 550000751. The reversal of 550000720 is 27000055.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12873744 + 537126976 = 3588^2 + 23176^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 11151 + ... + 34990.

It is an arithmetic number, because the mean of its divisors is an integer number (32184045).

Almost surely, 2^550000720 is an apocalyptic number.

It is an amenable number.

550000720 is an abundant number, since it is smaller than the sum of its proper divisors (737361080).

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

550000720 is a wasteful number, since it uses less digits than its factorization.

550000720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46303 (or 46297 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 550000720 is about 23452.0941495637. The cubic root of 550000720 is about 819.3216281225.

Adding to 550000720 its reverse (27000055), we get a palindrome (577000775).

The spelling of 550000720 in words is "five hundred fifty million, seven hundred twenty", and thus it is an aban number.