55847018 has 4 divisors (see below), whose sum is σ = 83770530. Its totient is φ = 27923508.

The previous prime is 55847017. The next prime is 55847021. The reversal of 55847018 is 81074855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81074855 = 5 ⋅16214971.

It can be written as a sum of positive squares in only one way, i.e., 55249489 + 597529 = 7433^2 + 773^2 .

It is not an unprimeable number, because it can be changed into a prime (55847017) by changing a digit.

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, 13961753 + ... + 13961756.

Almost surely, 2^55847018 is an apocalyptic number.

55847018 is a deficient number, since it is larger than the sum of its proper divisors (27923512).

55847018 is a wasteful number, since it uses less digits than its factorization.

55847018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27923511.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 55847018 is about 7473.0862433134. The cubic root of 55847018 is about 382.2375330698.

The spelling of 55847018 in words is "fifty-five million, eight hundred forty-seven thousand, eighteen".