52517298109 has 4 divisors (see below), whose sum is σ = 52528939516. Its totient is φ = 52505656704.

The previous prime is 52517298103. The next prime is 52517298131. The reversal of 52517298109 is 90189271525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 523265625 + 51994032484 = 22875^2 + 228022^2 .

It is a cyclic number.

It is not a de Polignac number, because 52517298109 - 2²⁷ = 52383080381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52517298103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5813934 + ... + 5822959.

It is an arithmetic number, because the mean of its divisors is an integer number (13132234879).

Almost surely, 2^52517298109 is an apocalyptic number.

It is an amenable number.

52517298109 is a deficient number, since it is larger than the sum of its proper divisors (11641407).

52517298109 is a wasteful number, since it uses less digits than its factorization.

52517298109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11641406.

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 52517298109 in words is "fifty-two billion, five hundred seventeen million, two hundred ninety-eight thousand, one hundred nine".