52568251 has 2 divisors, whose sum is σ = 52568252. Its totient is φ = 52568250.

The previous prime is 52568237. The next prime is 52568261. The reversal of 52568251 is 15286525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52568251 - 2⁷ = 52568123 is a prime.

It is not a weakly prime, because it can be changed into another prime (52568261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26284125 + 26284126.

It is an arithmetic number, because the mean of its divisors is an integer number (26284126).

Almost surely, 2^52568251 is an apocalyptic number.

52568251 is the 3876-th centered heptagonal number.

52568251 is a deficient number, since it is larger than the sum of its proper divisors (1).

52568251 is an equidigital number, since it uses as much as digits as its factorization.

52568251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24000, while the sum is 34.

The square root of 52568251 is about 7250.3966098414. The cubic root of 52568251 is about 374.6058103766.

The spelling of 52568251 in words is "fifty-two million, five hundred sixty-eight thousand, two hundred fifty-one".