252645269 has 2 divisors, whose sum is σ = 252645270. Its totient is φ = 252645268.

The previous prime is 252645247. The next prime is 252645353. The reversal of 252645269 is 962546252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226502500 + 26142769 = 15050^2 + 5113^2 .

It is a cyclic number.

It is not a de Polignac number, because 252645269 - 2¹² = 252641173 is a prime.

It is a super-2 number, since 2×252645269² = 127659263896164722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252645229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126322634 + 126322635.

It is an arithmetic number, because the mean of its divisors is an integer number (126322635).

Almost surely, 2^252645269 is an apocalyptic number.

It is an amenable number.

252645269 is a deficient number, since it is larger than the sum of its proper divisors (1).

252645269 is an equidigital number, since it uses as much as digits as its factorization.

252645269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 41.

The square root of 252645269 is about 15894.8189357413. The cubic root of 252645269 is about 632.1746207715.

The spelling of 252645269 in words is "two hundred fifty-two million, six hundred forty-five thousand, two hundred sixty-nine".