53726143 has 2 divisors, whose sum is σ = 53726144. Its totient is φ = 53726142.

The previous prime is 53726117. The next prime is 53726147. The reversal of 53726143 is 34162735.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53726143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53726147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26863071 + 26863072.

It is an arithmetic number, because the mean of its divisors is an integer number (26863072).

Almost surely, 2^53726143 is an apocalyptic number.

53726143 is a deficient number, since it is larger than the sum of its proper divisors (1).

53726143 is an equidigital number, since it uses as much as digits as its factorization.

53726143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 53726143 is about 7329.8119348316. The cubic root of 53726143 is about 377.3362721417.

Adding to 53726143 its reverse (34162735), we get a palindrome (87888878).

The spelling of 53726143 in words is "fifty-three million, seven hundred twenty-six thousand, one hundred forty-three".