55004222 has 16 divisors (see below), whose sum is σ = 101546592. Its totient is φ = 21759840.

The previous prime is 55004207. The next prime is 55004233. The reversal of 55004222 is 22240055.

It is a junction number, because it is equal to n+sod(n) for n = 55004194 and 55004203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150929 + ... + 151292.

It is an arithmetic number, because the mean of its divisors is an integer number (6346662).

Almost surely, 2^55004222 is an apocalyptic number.

55004222 is a deficient number, since it is larger than the sum of its proper divisors (46542370).

55004222 is a wasteful number, since it uses less digits than its factorization.

55004222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302243.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 55004222 is about 7416.4831288152. The cubic root of 55004222 is about 380.3049767758.

Adding to 55004222 its reverse (22240055), we get a palindrome (77244277).

The spelling of 55004222 in words is "fifty-five million, four thousand, two hundred twenty-two".