55685194 has 4 divisors (see below), whose sum is σ = 83527794. Its totient is φ = 27842596.

The previous prime is 55685173. The next prime is 55685209. The reversal of 55685194 is 49158655.

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., 53479969 + 2205225 = 7313^2 + 1485^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55685194.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13921297 + ... + 13921300.

Almost surely, 2^55685194 is an apocalyptic number.

55685194 is a deficient number, since it is larger than the sum of its proper divisors (27842600).

55685194 is a wasteful number, since it uses less digits than its factorization.

55685194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27842599.

The product of its digits is 216000, while the sum is 43.

The square root of 55685194 is about 7462.2512688866. The cubic root of 55685194 is about 381.8679815722.

The spelling of 55685194 in words is "fifty-five million, six hundred eighty-five thousand, one hundred ninety-four".