252525570715717 has 4 divisors (see below), whose sum is σ = 271950614616940. Its totient is φ = 233100526814496.

The previous prime is 252525570715681. The next prime is 252525570715721. The reversal of 252525570715717 is 717517075525252.

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 168450443491716 + 84075127224001 = 12978846^2 + 9169249^2 .

It is a cyclic number.

It is not a de Polignac number, because 252525570715717 - 2¹⁹ = 252525570191429 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 (252525570775717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9712521950592 + ... + 9712521950617.

It is an arithmetic number, because the mean of its divisors is an integer number (67987653654235).

Almost surely, 2^{252525570715717} is an apocalyptic number.

It is an amenable number.

252525570715717 is a deficient number, since it is larger than the sum of its proper divisors (19425043901223).

252525570715717 is a wasteful number, since it uses less digits than its factorization.

252525570715717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19425043901222.

The product of its (nonzero) digits is 60025000, while the sum is 61.

The spelling of 252525570715717 in words is "two hundred fifty-two trillion, five hundred twenty-five billion, five hundred seventy million, seven hundred fifteen thousand, seven hundred seventeen".