52099609 has 2 divisors, whose sum is σ = 52099610. Its totient is φ = 52099608.

The previous prime is 52099571. The next prime is 52099627. The reversal of 52099609 is 90699025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41024025 + 11075584 = 6405^2 + 3328^2 .

It is a cyclic number.

It is not a de Polignac number, because 52099609 - 2¹¹ = 52097561 is a prime.

It is not a weakly prime, because it can be changed into another prime (52099639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26049804 + 26049805.

It is an arithmetic number, because the mean of its divisors is an integer number (26049805).

Almost surely, 2^52099609 is an apocalyptic number.

It is an amenable number.

52099609 is a deficient number, since it is larger than the sum of its proper divisors (1).

52099609 is an equidigital number, since it uses as much as digits as its factorization.

52099609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 52099609 is about 7218.0058880552. The cubic root of 52099609 is about 373.4892916817.

The spelling of 52099609 in words is "fifty-two million, ninety-nine thousand, six hundred nine".