551434422 has 64 divisors (see below), whose sum is σ = 1394454528. Its totient is φ = 141204000.

The previous prime is 551434369. The next prime is 551434441. The reversal of 551434422 is 224434155.

551434422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 551434422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24397 + ... + 41207.

It is an arithmetic number, because the mean of its divisors is an integer number (21788352).

Almost surely, 2^551434422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551434422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697227264).

551434422 is an abundant number, since it is smaller than the sum of its proper divisors (843020106).

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

551434422 is a wasteful number, since it uses less digits than its factorization.

551434422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16905.

The product of its digits is 19200, while the sum is 30.

The square root of 551434422 is about 23482.6408651157. The cubic root of 551434422 is about 820.0329264986.

Adding to 551434422 its reverse (224434155), we get a palindrome (775868577).

The spelling of 551434422 in words is "five hundred fifty-one million, four hundred thirty-four thousand, four hundred twenty-two".