55426422 has 8 divisors (see below), whose sum is σ = 110852856. Its totient is φ = 18475472.

The previous prime is 55426411. The next prime is 55426433. The reversal of 55426422 is 22462455.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55426411) and next prime (55426433).

It is a sphenic number, since it is the product of 3 distinct primes.

55426422 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 55426422.

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 3 ways as a sum of consecutive naturals, for example, 4618863 + ... + 4618874.

It is an arithmetic number, because the mean of its divisors is an integer number (13856607).

Almost surely, 2^55426422 is an apocalyptic number.

55426422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55426422 is a wasteful number, since it uses less digits than its factorization.

55426422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9237742.

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

The square root of 55426422 is about 7444.8923430766. The cubic root of 55426422 is about 381.2755427839.

Adding to 55426422 its reverse (22462455), we get a palindrome (77888877).

The spelling of 55426422 in words is "fifty-five million, four hundred twenty-six thousand, four hundred twenty-two".