252606021713 has 2 divisors, whose sum is σ = 252606021714. Its totient is φ = 252606021712.

The previous prime is 252606021677. The next prime is 252606021719. The reversal of 252606021713 is 317120606252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212601221569 + 40004800144 = 461087^2 + 200012^2 .

It is a cyclic number.

It is not a de Polignac number, because 252606021713 - 2²⁶ = 252538912849 is a prime.

It is not a weakly prime, because it can be changed into another prime (252606021719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126303010856 + 126303010857.

It is an arithmetic number, because the mean of its divisors is an integer number (126303010857).

Almost surely, 2^252606021713 is an apocalyptic number.

It is an amenable number.

252606021713 is a deficient number, since it is larger than the sum of its proper divisors (1).

252606021713 is an equidigital number, since it uses as much as digits as its factorization.

252606021713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 252606021713 its reverse (317120606252), we get a palindrome (569726627965).

The spelling of 252606021713 in words is "two hundred fifty-two billion, six hundred six million, twenty-one thousand, seven hundred thirteen".