52209825565 has 16 divisors (see below), whose sum is σ = 63253291392. Its totient is φ = 41367057984.

The previous prime is 52209825557. The next prime is 52209825581. The reversal of 52209825565 is 56552890225.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52209825565 - 2³ = 52209825557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2642152 + ... + 2661838.

It is an arithmetic number, because the mean of its divisors is an integer number (3953330712).

Almost surely, 2^52209825565 is an apocalyptic number.

It is an amenable number.

52209825565 is a deficient number, since it is larger than the sum of its proper divisors (11043465827).

52209825565 is a wasteful number, since it uses less digits than its factorization.

52209825565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24756.

The product of its (nonzero) digits is 2160000, while the sum is 49.

The spelling of 52209825565 in words is "fifty-two billion, two hundred nine million, eight hundred twenty-five thousand, five hundred sixty-five".