53013143 has 2 divisors, whose sum is σ = 53013144. Its totient is φ = 53013142.

The previous prime is 53013127. The next prime is 53013151. The reversal of 53013143 is 34131035.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53013143 - 2⁴ = 53013127 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53013343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26506571 + 26506572.

It is an arithmetic number, because the mean of its divisors is an integer number (26506572).

Almost surely, 2^53013143 is an apocalyptic number.

53013143 is a deficient number, since it is larger than the sum of its proper divisors (1).

53013143 is an equidigital number, since it uses as much as digits as its factorization.

53013143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 53013143 is about 7281.0124982725. The cubic root of 53013143 is about 375.6596224557.

Adding to 53013143 its reverse (34131035), we get a palindrome (87144178).

The spelling of 53013143 in words is "fifty-three million, thirteen thousand, one hundred forty-three".