550391466 has 16 divisors (see below), whose sum is σ = 1117213344. Its totient is φ = 180725424.

The previous prime is 550391461. The next prime is 550391477. The reversal of 550391466 is 664193055.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550391461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684165 + ... + 684968.

It is an arithmetic number, because the mean of its divisors is an integer number (69825834).

Almost surely, 2^550391466 is an apocalyptic number.

550391466 is an abundant number, since it is smaller than the sum of its proper divisors (566821878).

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

550391466 is a wasteful number, since it uses less digits than its factorization.

550391466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369205.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 550391466 is about 23460.4233977139. The cubic root of 550391466 is about 819.5156102099.

It can be divided in two parts, 5503 and 91466, that added together give a palindrome (96969).

The spelling of 550391466 in words is "five hundred fifty million, three hundred ninety-one thousand, four hundred sixty-six".