55208618 has 8 divisors (see below), whose sum is σ = 83617248. Its totient is φ = 27336204.

The previous prime is 55208611. The next prime is 55208627. The reversal of 55208618 is 81680255.

It is a happy number.

55208618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (55208611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133796 + ... + 134207.

It is an arithmetic number, because the mean of its divisors is an integer number (10452156).

Almost surely, 2^55208618 is an apocalyptic number.

55208618 is a deficient number, since it is larger than the sum of its proper divisors (28408630).

55208618 is a wasteful number, since it uses less digits than its factorization.

55208618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268108.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 55208618 is about 7430.2501976717. The cubic root of 55208618 is about 380.7754662904.

The spelling of 55208618 in words is "fifty-five million, two hundred eight thousand, six hundred eighteen".