55147163 has 4 divisors (see below), whose sum is σ = 55512528. Its totient is φ = 54781800.

The previous prime is 55147129. The next prime is 55147207. The reversal of 55147163 is 36174155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36174155 = 5 ⋅7234831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55147163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55144163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182456 + ... + 182757.

It is an arithmetic number, because the mean of its divisors is an integer number (13878132).

Almost surely, 2^55147163 is an apocalyptic number.

55147163 is a deficient number, since it is larger than the sum of its proper divisors (365365).

55147163 is a wasteful number, since it uses less digits than its factorization.

55147163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365364.

The product of its digits is 12600, while the sum is 32.

The square root of 55147163 is about 7426.1135865269. The cubic root of 55147163 is about 380.6341281853.

The spelling of 55147163 in words is "fifty-five million, one hundred forty-seven thousand, one hundred sixty-three".