52705352217 has 20 divisors (see below), whose sum is σ = 81981236560. Its totient is φ = 30117340008.

The previous prime is 52705352213. The next prime is 52705352221. The reversal of 52705352217 is 71225350725.

It is an interprime number because it is at equal distance from previous prime (52705352213) and next prime (52705352221).

It is not a de Polignac number, because 52705352217 - 2² = 52705352213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52705352213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3651367 + ... + 3665772.

It is an arithmetic number, because the mean of its divisors is an integer number (4099061828).

Almost surely, 2^52705352217 is an apocalyptic number.

It is an amenable number.

52705352217 is a deficient number, since it is larger than the sum of its proper divisors (29275884343).

52705352217 is an frugal number, since it uses more digits than its factorization.

52705352217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7317170 (or 7317149 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 39.

The spelling of 52705352217 in words is "fifty-two billion, seven hundred five million, three hundred fifty-two thousand, two hundred seventeen".