55418386 has 4 divisors (see below), whose sum is σ = 83127582. Its totient is φ = 27709192.

The previous prime is 55418381. The next prime is 55418387. The reversal of 55418386 is 68381455.

55418386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68381455 = 5 ⋅13676291.

It can be written as a sum of positive squares in only one way, i.e., 33281361 + 22137025 = 5769^2 + 4705^2 .

It is a Smith number, since the sum of its digits (40) 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 (55418381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13854595 + ... + 13854598.

Almost surely, 2^55418386 is an apocalyptic number.

55418386 is a deficient number, since it is larger than the sum of its proper divisors (27709196).

55418386 is a wasteful number, since it uses less digits than its factorization.

55418386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27709195.

The product of its digits is 115200, while the sum is 40.

The square root of 55418386 is about 7444.3526246410. The cubic root of 55418386 is about 381.2571154813.

The spelling of 55418386 in words is "fifty-five million, four hundred eighteen thousand, three hundred eighty-six".