55207676218 has 4 divisors (see below), whose sum is σ = 82811514330. Its totient is φ = 27603838108.

The previous prime is 55207676213. The next prime is 55207676219. The reversal of 55207676218 is 81267670255.

It is a happy number.

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., 49118527129 + 6089149089 = 221627^2 + 78033^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (55207676213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13801919053 + ... + 13801919056.

Almost surely, 2^55207676218 is an apocalyptic number.

55207676218 is a deficient number, since it is larger than the sum of its proper divisors (27603838112).

55207676218 is a wasteful number, since it uses less digits than its factorization.

55207676218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27603838111.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 55207676218 in words is "fifty-five billion, two hundred seven million, six hundred seventy-six thousand, two hundred eighteen".