55214222 has 8 divisors (see below), whose sum is σ = 94652976. Its totient is φ = 23663232.

The previous prime is 55214219. The next prime is 55214233. The reversal of 55214222 is 22241255.

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

It is a super-2 number, since 2×55214222² = 6097220622130568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1971923 + ... + 1971950.

It is an arithmetic number, because the mean of its divisors is an integer number (11831622).

Almost surely, 2^55214222 is an apocalyptic number.

55214222 is a deficient number, since it is larger than the sum of its proper divisors (39438754).

55214222 is a wasteful number, since it uses less digits than its factorization.

55214222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3943882.

The product of its digits is 1600, while the sum is 23.

The square root of 55214222 is about 7430.6272951885. The cubic root of 55214222 is about 380.7883495056.

Adding to 55214222 its reverse (22241255), we get a palindrome (77455477).

The spelling of 55214222 in words is "fifty-five million, two hundred fourteen thousand, two hundred twenty-two".