550520840 has 16 divisors (see below), whose sum is σ = 1238671980. Its totient is φ = 220208320.

The previous prime is 550520777. The next prime is 550520849. The reversal of 550520840 is 48025055.

It can be written as a sum of positive squares in 2 ways, for example, as 532594084 + 17926756 = 23078^2 + 4234^2 .

It is not an unprimeable number, because it can be changed into a prime (550520849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6881471 + ... + 6881550.

Almost surely, 2^550520840 is an apocalyptic number.

It is an amenable number.

550520840 is an abundant number, since it is smaller than the sum of its proper divisors (688151140).

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

550520840 is a wasteful number, since it uses less digits than its factorization.

550520840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13763032 (or 13763028 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 550520840 is about 23463.1805175684. The cubic root of 550520840 is about 819.5798164539.

Adding to 550520840 its reverse (48025055), we get a palindrome (598545895).

The spelling of 550520840 in words is "five hundred fifty million, five hundred twenty thousand, eight hundred forty".