55016018 has 4 divisors (see below), whose sum is σ = 82524030. Its totient is φ = 27508008.

The previous prime is 55016009. The next prime is 55016021. The reversal of 55016018 is 81061055.

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., 53333809 + 1682209 = 7303^2 + 1297^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13754003 + ... + 13754006.

Almost surely, 2^55016018 is an apocalyptic number.

55016018 is a deficient number, since it is larger than the sum of its proper divisors (27508012).

55016018 is a wasteful number, since it uses less digits than its factorization.

55016018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27508011.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 55016018 is about 7417.2783418178. The cubic root of 55016018 is about 380.3321610942.

The spelling of 55016018 in words is "fifty-five million, sixteen thousand, eighteen".