52305257 has 2 divisors, whose sum is σ = 52305258. Its totient is φ = 52305256.

The previous prime is 52305247. The next prime is 52305259. The reversal of 52305257 is 75250325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46526041 + 5779216 = 6821^2 + 2404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52305257 is a prime.

Together with 52305259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52305259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26152628 + 26152629.

It is an arithmetic number, because the mean of its divisors is an integer number (26152629).

Almost surely, 2^52305257 is an apocalyptic number.

It is an amenable number.

52305257 is a deficient number, since it is larger than the sum of its proper divisors (1).

52305257 is an equidigital number, since it uses as much as digits as its factorization.

52305257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 52305257 is about 7232.2373440036. The cubic root of 52305257 is about 373.9800598480.

The spelling of 52305257 in words is "fifty-two million, three hundred five thousand, two hundred fifty-seven".