252165647 has 2 divisors, whose sum is σ = 252165648. Its totient is φ = 252165646.

The previous prime is 252165611. The next prime is 252165653. The reversal of 252165647 is 746561252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252165647 - 2¹⁴ = 252149263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252165647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252165547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126082823 + 126082824.

It is an arithmetic number, because the mean of its divisors is an integer number (126082824).

Almost surely, 2^252165647 is an apocalyptic number.

252165647 is a deficient number, since it is larger than the sum of its proper divisors (1).

252165647 is an equidigital number, since it uses as much as digits as its factorization.

252165647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 38.

The square root of 252165647 is about 15879.7243993717. The cubic root of 252165647 is about 631.7743270739.

The spelling of 252165647 in words is "two hundred fifty-two million, one hundred sixty-five thousand, six hundred forty-seven".