55842018 has 8 divisors (see below), whose sum is σ = 111684048. Its totient is φ = 18614004.

The previous prime is 55841983. The next prime is 55842029. The reversal of 55842018 is 81024855.

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

55842018 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 55842018.

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 3 ways as a sum of consecutive naturals, for example, 4653496 + ... + 4653507.

It is an arithmetic number, because the mean of its divisors is an integer number (13960506).

Almost surely, 2^55842018 is an apocalyptic number.

55842018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55842018 is a wasteful number, since it uses less digits than its factorization.

55842018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9307008.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 55842018 is about 7472.7517020171. The cubic root of 55842018 is about 382.2261254496.

The spelling of 55842018 in words is "fifty-five million, eight hundred forty-two thousand, eighteen".