550809140 has 24 divisors (see below), whose sum is σ = 1321942272. Its totient is φ = 188848800.

The previous prime is 550809139. The next prime is 550809169. The reversal of 550809140 is 41908055.

It is a junction number, because it is equal to n+sod(n) for n = 550809097 and 550809106.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1967036 + ... + 1967315.

It is an arithmetic number, because the mean of its divisors is an integer number (55080928).

Almost surely, 2^550809140 is an apocalyptic number.

It is an amenable number.

550809140 is an abundant number, since it is smaller than the sum of its proper divisors (771133132).

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

550809140 is a wasteful number, since it uses less digits than its factorization.

550809140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934367 (or 3934365 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 550809140 is about 23469.3233818106. The cubic root of 550809140 is about 819.7228589509.

The spelling of 550809140 in words is "five hundred fifty million, eight hundred nine thousand, one hundred forty".