55260218 has 8 divisors (see below), whose sum is σ = 89266548. Its totient is φ = 25504704.

The previous prime is 55260211. The next prime is 55260239. The reversal of 55260218 is 81206255.

55260218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45792289 + 9467929 = 6767^2 + 3077^2 .

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

It is a super-4 number, since 4×55260218⁴ (a number of 32 digits) contains 4444 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55260211) 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, 1062671 + ... + 1062722.

Almost surely, 2^55260218 is an apocalyptic number.

55260218 is a deficient number, since it is larger than the sum of its proper divisors (34006330).

55260218 is a wasteful number, since it uses less digits than its factorization.

55260218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125408.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 55260218 is about 7433.7216789439. The cubic root of 55260218 is about 380.8940582584.

The spelling of 55260218 in words is "fifty-five million, two hundred sixty thousand, two hundred eighteen".