252858643 has 2 divisors, whose sum is σ = 252858644. Its totient is φ = 252858642.

The previous prime is 252858623. The next prime is 252858667. The reversal of 252858643 is 346858252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252858643 - 2²¹ = 250761491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252858643.

It is not a weakly prime, because it can be changed into another prime (252858623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126429321 + 126429322.

It is an arithmetic number, because the mean of its divisors is an integer number (126429322).

Almost surely, 2^252858643 is an apocalyptic number.

252858643 is a deficient number, since it is larger than the sum of its proper divisors (1).

252858643 is an equidigital number, since it uses as much as digits as its factorization.

252858643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460800, while the sum is 43.

The square root of 252858643 is about 15901.5295805152. The cubic root of 252858643 is about 632.3525404185.

The spelling of 252858643 in words is "two hundred fifty-two million, eight hundred fifty-eight thousand, six hundred forty-three".