55818022 has 8 divisors (see below), whose sum is σ = 90167616. Its totient is φ = 25762152.

The previous prime is 55818017. The next prime is 55818101. The reversal of 55818022 is 22081855.

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

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, 1073398 + ... + 1073449.

It is an arithmetic number, because the mean of its divisors is an integer number (11270952).

Almost surely, 2^55818022 is an apocalyptic number.

55818022 is a deficient number, since it is larger than the sum of its proper divisors (34349594).

55818022 is a wasteful number, since it uses less digits than its factorization.

55818022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146862.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 55818022 is about 7471.1459629698. The cubic root of 55818022 is about 382.1713685210.

Adding to 55818022 its reverse (22081855), we get a palindrome (77899877).

The spelling of 55818022 in words is "fifty-five million, eight hundred eighteen thousand, twenty-two".