550418390 has 32 divisors (see below), whose sum is σ = 1004002560. Its totient is φ = 217240704.

The previous prime is 550418389. The next prime is 550418411. The reversal of 550418390 is 93814055.

It is a self number, because there is not a number n which added to its sum of digits gives 550418390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301019 + ... + 302841.

It is an arithmetic number, because the mean of its divisors is an integer number (31375080).

Almost surely, 2^550418390 is an apocalyptic number.

550418390 is a deficient number, since it is larger than the sum of its proper divisors (453584170).

550418390 is a wasteful number, since it uses less digits than its factorization.

550418390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 550418390 is about 23460.9972081325. The cubic root of 550418390 is about 819.5289729888.

The spelling of 550418390 in words is "five hundred fifty million, four hundred eighteen thousand, three hundred ninety".