52864447 has 2 divisors, whose sum is σ = 52864448. Its totient is φ = 52864446.

The previous prime is 52864433. The next prime is 52864459. The reversal of 52864447 is 74446825.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52864447 - 2⁷ = 52864319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52861447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26432223 + 26432224.

It is an arithmetic number, because the mean of its divisors is an integer number (26432224).

Almost surely, 2^52864447 is an apocalyptic number.

52864447 is a deficient number, since it is larger than the sum of its proper divisors (1).

52864447 is an equidigital number, since it uses as much as digits as its factorization.

52864447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 40.

The square root of 52864447 is about 7270.7941106869. The cubic root of 52864447 is about 375.3080656670.

The spelling of 52864447 in words is "fifty-two million, eight hundred sixty-four thousand, four hundred forty-seven".