55069018 has 8 divisors (see below), whose sum is σ = 87462612. Its totient is φ = 25914816.

The previous prime is 55069009. The next prime is 55069019. The reversal of 55069018 is 81096055.

It can be written as a sum of positive squares in 2 ways, for example, as 46963609 + 8105409 = 6853^2 + 2847^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 1619677 = 55069018 / (5 + 5 + 0 + 6 + 9 + 0 + 1 + 8).

It is not an unprimeable number, because it can be changed into a prime (55069019) by changing a digit.

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, 809805 + ... + 809872.

Almost surely, 2^55069018 is an apocalyptic number.

55069018 is a deficient number, since it is larger than the sum of its proper divisors (32393594).

55069018 is a wasteful number, since it uses less digits than its factorization.

55069018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619696.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 55069018 is about 7420.8502208305. The cubic root of 55069018 is about 380.4542536275.

The spelling of 55069018 in words is "fifty-five million, sixty-nine thousand, eighteen".