252065389 has 2 divisors, whose sum is σ = 252065390. Its totient is φ = 252065388.

The previous prime is 252065347. The next prime is 252065393. The reversal of 252065389 is 983560252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208571364 + 43494025 = 14442^2 + 6595^2 .

It is a cyclic number.

It is not a de Polignac number, because 252065389 - 2⁹ = 252064877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252066389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126032694 + 126032695.

It is an arithmetic number, because the mean of its divisors is an integer number (126032695).

Almost surely, 2^252065389 is an apocalyptic number.

It is an amenable number.

252065389 is a deficient number, since it is larger than the sum of its proper divisors (1).

252065389 is an equidigital number, since it uses as much as digits as its factorization.

252065389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 252065389 is about 15876.5672927116. The cubic root of 252065389 is about 631.6905873740.

The spelling of 252065389 in words is "two hundred fifty-two million, sixty-five thousand, three hundred eighty-nine".