52509649 has 2 divisors, whose sum is σ = 52509650. Its totient is φ = 52509648.

The previous prime is 52509637. The next prime is 52509659. The reversal of 52509649 is 94690525.

52509649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48233025 + 4276624 = 6945^2 + 2068^2 .

It is a cyclic number.

It is not a de Polignac number, because 52509649 - 2⁹ = 52509137 is a prime.

It is not a weakly prime, because it can be changed into another prime (52509619) 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, 26254824 + 26254825.

It is an arithmetic number, because the mean of its divisors is an integer number (26254825).

Almost surely, 2^52509649 is an apocalyptic number.

It is an amenable number.

52509649 is a deficient number, since it is larger than the sum of its proper divisors (1).

52509649 is an equidigital number, since it uses as much as digits as its factorization.

52509649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 52509649 is about 7246.3541867618. The cubic root of 52509649 is about 374.4665576794.

The spelling of 52509649 in words is "fifty-two million, five hundred nine thousand, six hundred forty-nine".