55214018 has 4 divisors (see below), whose sum is σ = 82821030. Its totient is φ = 27607008.

The previous prime is 55213993. The next prime is 55214039. The reversal of 55214018 is 81041255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81041255 = 5 ⋅16208251.

It can be written as a sum of positive squares in only one way, i.e., 35438209 + 19775809 = 5953^2 + 4447^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13803503 + ... + 13803506.

Almost surely, 2^55214018 is an apocalyptic number.

55214018 is a deficient number, since it is larger than the sum of its proper divisors (27607012).

55214018 is a wasteful number, since it uses less digits than its factorization.

55214018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27607011.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 55214018 is about 7430.6135682055. The cubic root of 55214018 is about 380.7878805387.

The spelling of 55214018 in words is "fifty-five million, two hundred fourteen thousand, eighteen".