55650143 has 2 divisors, whose sum is σ = 55650144. Its totient is φ = 55650142.

The previous prime is 55650073. The next prime is 55650149. The reversal of 55650143 is 34105655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55650143 - 2²⁰ = 54601567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55650149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27825071 + 27825072.

It is an arithmetic number, because the mean of its divisors is an integer number (27825072).

Almost surely, 2^55650143 is an apocalyptic number.

55650143 is a deficient number, since it is larger than the sum of its proper divisors (1).

55650143 is an equidigital number, since it uses as much as digits as its factorization.

55650143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 55650143 is about 7459.9023452053. The cubic root of 55650143 is about 381.7878425921.

Adding to 55650143 its reverse (34105655), we get a palindrome (89755798).

The spelling of 55650143 in words is "fifty-five million, six hundred fifty thousand, one hundred forty-three".