55500163 has 2 divisors, whose sum is σ = 55500164. Its totient is φ = 55500162.

The previous prime is 55500161. The next prime is 55500209. The reversal of 55500163 is 36100555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55500163 - 2¹ = 55500161 is a prime.

Together with 55500161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55500161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750081 + 27750082.

It is an arithmetic number, because the mean of its divisors is an integer number (27750082).

Almost surely, 2^55500163 is an apocalyptic number.

55500163 is a deficient number, since it is larger than the sum of its proper divisors (1).

55500163 is an equidigital number, since it uses as much as digits as its factorization.

55500163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 55500163 is about 7449.8431527113. The cubic root of 55500163 is about 381.4445547181. Note that the first 3 decimals are identical.

The spelling of 55500163 in words is "fifty-five million, five hundred thousand, one hundred sixty-three".