55048018 has 4 divisors (see below), whose sum is σ = 82572030. Its totient is φ = 27524008.

The previous prime is 55047991. The next prime is 55048067. The reversal of 55048018 is 81084055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54567769 + 480249 = 7387^2 + 693^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13762003 + ... + 13762006.

Almost surely, 2^55048018 is an apocalyptic number.

55048018 is a deficient number, since it is larger than the sum of its proper divisors (27524012).

55048018 is a wasteful number, since it uses less digits than its factorization.

55048018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27524011.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 55048018 is about 7419.4351537027. The cubic root of 55048018 is about 380.4058867150.

The spelling of 55048018 in words is "fifty-five million, forty-eight thousand, eighteen".