52071091717 has 4 divisors (see below), whose sum is σ = 52415933536. Its totient is φ = 51726249900.

The previous prime is 52071091679. The next prime is 52071091727. The reversal of 52071091717 is 71719017025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52071091717 - 2¹¹ = 52071089669 is a prime.

It is a super-2 number, since 2×52071091717² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52071091717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52071091727) 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 3 ways as a sum of consecutive naturals, for example, 172420683 + ... + 172420984.

It is an arithmetic number, because the mean of its divisors is an integer number (13103983384).

Almost surely, 2^52071091717 is an apocalyptic number.

It is an amenable number.

52071091717 is a deficient number, since it is larger than the sum of its proper divisors (344841819).

52071091717 is a wasteful number, since it uses less digits than its factorization.

52071091717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344841818.

The product of its (nonzero) digits is 30870, while the sum is 40.

The spelling of 52071091717 in words is "fifty-two billion, seventy-one million, ninety-one thousand, seven hundred seventeen".