52705117261 has 4 divisors (see below), whose sum is σ = 53009771292. Its totient is φ = 52400463232.

The previous prime is 52705117259. The next prime is 52705117313. The reversal of 52705117261 is 16271150725.

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 45787868361 + 6917248900 = 213981^2 + 83170^2 .

It is a cyclic number.

It is not a de Polignac number, because 52705117261 - 2¹ = 52705117259 is a prime.

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 52705117261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52705127261) 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, 152326756 + ... + 152327101.

It is an arithmetic number, because the mean of its divisors is an integer number (13252442823).

Almost surely, 2^52705117261 is an apocalyptic number.

It is an amenable number.

52705117261 is a deficient number, since it is larger than the sum of its proper divisors (304654031).

52705117261 is a wasteful number, since it uses less digits than its factorization.

52705117261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304654030.

The product of its (nonzero) digits is 29400, while the sum is 37.

Adding to 52705117261 its reverse (16271150725), we get a palindrome (68976267986).

The spelling of 52705117261 in words is "fifty-two billion, seven hundred five million, one hundred seventeen thousand, two hundred sixty-one".