252263649709 has 2 divisors, whose sum is σ = 252263649710. Its totient is φ = 252263649708.

The previous prime is 252263649643. The next prime is 252263649719. The reversal of 252263649709 is 907946362252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217314468900 + 34949180809 = 466170^2 + 186947^2 .

It is a cyclic number.

It is not a de Polignac number, because 252263649709 - 2²⁵ = 252230095277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252263649709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252263649719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126131824854 + 126131824855.

It is an arithmetic number, because the mean of its divisors is an integer number (126131824855).

Almost surely, 2^252263649709 is an apocalyptic number.

It is an amenable number.

252263649709 is a deficient number, since it is larger than the sum of its proper divisors (1).

252263649709 is an equidigital number, since it uses as much as digits as its factorization.

252263649709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 252263649709 in words is "two hundred fifty-two billion, two hundred sixty-three million, six hundred forty-nine thousand, seven hundred nine".