55218059 has 16 divisors (see below), whose sum is σ = 61992000. Its totient is φ = 48832896.

The previous prime is 55218029. The next prime is 55218061. The reversal of 55218059 is 95081255.

It is a cyclic number.

It is not a de Polignac number, because 55218059 - 2⁸ = 55217803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55218019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55682 + ... + 56664.

It is an arithmetic number, because the mean of its divisors is an integer number (3874500).

Almost surely, 2^55218059 is an apocalyptic number.

55218059 is a deficient number, since it is larger than the sum of its proper divisors (6773941).

55218059 is a wasteful number, since it uses less digits than its factorization.

55218059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174.

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 55218059 is about 7430.8854788645. The cubic root of 55218059 is about 380.7971700051.

The spelling of 55218059 in words is "fifty-five million, two hundred eighteen thousand, fifty-nine".