52257869 has 2 divisors, whose sum is σ = 52257870. Its totient is φ = 52257868.

The previous prime is 52257839. The next prime is 52257899. The reversal of 52257869 is 96875225.

52257869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (52257839) and next prime (52257899).

It can be written as a sum of positive squares in only one way, i.e., 43626025 + 8631844 = 6605^2 + 2938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52257869 is a prime.

It is a super-2 number, since 2×52257869² = 5461769744842322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52257839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26128934 + 26128935.

It is an arithmetic number, because the mean of its divisors is an integer number (26128935).

Almost surely, 2^52257869 is an apocalyptic number.

It is an amenable number.

52257869 is a deficient number, since it is larger than the sum of its proper divisors (1).

52257869 is an equidigital number, since it uses as much as digits as its factorization.

52257869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 44.

The square root of 52257869 is about 7228.9604370200. The cubic root of 52257869 is about 373.8670850865.

The spelling of 52257869 in words is "fifty-two million, two hundred fifty-seven thousand, eight hundred sixty-nine".