55444122 has 32 divisors (see below), whose sum is σ = 128568960. Its totient is φ = 17677440.

The previous prime is 55444111. The next prime is 55444139. The reversal of 55444122 is 22144455.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21079 + ... + 23562.

It is an arithmetic number, because the mean of its divisors is an integer number (4017780).

Almost surely, 2^55444122 is an apocalyptic number.

55444122 is an abundant number, since it is smaller than the sum of its proper divisors (73124838).

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

55444122 is a wasteful number, since it uses less digits than its factorization.

55444122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44675 (or 44669 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 55444122 is about 7446.0809826378. The cubic root of 55444122 is about 381.3161242648.

Adding to 55444122 its reverse (22144455), we get a palindrome (77588577).

The spelling of 55444122 in words is "fifty-five million, four hundred forty-four thousand, one hundred twenty-two".