55444022 has 4 divisors (see below), whose sum is σ = 83166036. Its totient is φ = 27722010.

The previous prime is 55444001. The next prime is 55444031. The reversal of 55444022 is 22044455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22044455 = 5 ⋅4408891.

It is a junction number, because it is equal to n+sod(n) for n = 55443982 and 55444000.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 13861004 + ... + 13861007.

It is an arithmetic number, because the mean of its divisors is an integer number (20791509).

Almost surely, 2^55444022 is an apocalyptic number.

55444022 is a deficient number, since it is larger than the sum of its proper divisors (27722014).

55444022 is a wasteful number, since it uses less digits than its factorization.

55444022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27722013.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 55444022 is about 7446.0742676930. The cubic root of 55444022 is about 381.3158950152.

Adding to 55444022 its reverse (22044455), we get a palindrome (77488477).

The spelling of 55444022 in words is "fifty-five million, four hundred forty-four thousand, twenty-two".