252959647 has 2 divisors, whose sum is σ = 252959648. Its totient is φ = 252959646.

The previous prime is 252959633. The next prime is 252959683. The reversal of 252959647 is 746959252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252959647 - 2⁷ = 252959519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252959647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252959747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126479823 + 126479824.

It is an arithmetic number, because the mean of its divisors is an integer number (126479824).

Almost surely, 2^252959647 is an apocalyptic number.

252959647 is a deficient number, since it is larger than the sum of its proper divisors (1).

252959647 is an equidigital number, since it uses as much as digits as its factorization.

252959647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 49.

The square root of 252959647 is about 15904.7051843157. The cubic root of 252959647 is about 632.4367266300.

The spelling of 252959647 in words is "two hundred fifty-two million, nine hundred fifty-nine thousand, six hundred forty-seven".