52645609 has 2 divisors, whose sum is σ = 52645610. Its totient is φ = 52645608.

The previous prime is 52645531. The next prime is 52645627. The reversal of 52645609 is 90654625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37552384 + 15093225 = 6128^2 + 3885^2 .

It is a cyclic number.

It is not a de Polignac number, because 52645609 - 2¹¹ = 52643561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52645309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26322804 + 26322805.

It is an arithmetic number, because the mean of its divisors is an integer number (26322805).

Almost surely, 2^52645609 is an apocalyptic number.

It is an amenable number.

52645609 is a deficient number, since it is larger than the sum of its proper divisors (1).

52645609 is an equidigital number, since it uses as much as digits as its factorization.

52645609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 52645609 is about 7255.7293913155. The cubic root of 52645609 is about 374.7894735354.

The spelling of 52645609 in words is "fifty-two million, six hundred forty-five thousand, six hundred nine".