55330422 has 32 divisors (see below), whose sum is σ = 129414912. Its totient is φ = 15440544.

The previous prime is 55330399. The next prime is 55330439. The reversal of 55330422 is 22403355.

55330422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55330422² = 6122911197396168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55330392 and 55330401.

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 15 ways as a sum of consecutive naturals, for example, 13513 + ... + 17124.

It is an arithmetic number, because the mean of its divisors is an integer number (4044216).

Almost surely, 2^55330422 is an apocalyptic number.

55330422 is an abundant number, since it is smaller than the sum of its proper divisors (74084490).

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

55330422 is a wasteful number, since it uses less digits than its factorization.

55330422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30692.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 55330422 is about 7438.4421756172. The cubic root of 55330422 is about 381.0552891980.

Adding to 55330422 its reverse (22403355), we get a palindrome (77733777).

The spelling of 55330422 in words is "fifty-five million, three hundred thirty thousand, four hundred twenty-two".