53330143 has 2 divisors, whose sum is σ = 53330144. Its totient is φ = 53330142.

The previous prime is 53330129. The next prime is 53330149. The reversal of 53330143 is 34103335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53330143 - 2¹³ = 53321951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53330149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26665071 + 26665072.

It is an arithmetic number, because the mean of its divisors is an integer number (26665072).

Almost surely, 2^53330143 is an apocalyptic number.

53330143 is a deficient number, since it is larger than the sum of its proper divisors (1).

53330143 is an equidigital number, since it uses as much as digits as its factorization.

53330143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 53330143 is about 7302.7490029440. The cubic root of 53330143 is about 376.4069058562.

Adding to 53330143 its reverse (34103335), we get a palindrome (87433478).

The spelling of 53330143 in words is "fifty-three million, three hundred thirty thousand, one hundred forty-three".