252535442443 has 2 divisors, whose sum is σ = 252535442444. Its totient is φ = 252535442442.

The previous prime is 252535442429. The next prime is 252535442543. The reversal of 252535442443 is 344244535252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252535442443 - 2²¹ = 252533345291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252535442443.

It is not a weakly prime, because it can be changed into another prime (252535442413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126267721221 + 126267721222.

It is an arithmetic number, because the mean of its divisors is an integer number (126267721222).

Almost surely, 2^252535442443 is an apocalyptic number.

252535442443 is a deficient number, since it is larger than the sum of its proper divisors (1).

252535442443 is an equidigital number, since it uses as much as digits as its factorization.

252535442443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304000, while the sum is 43.

Adding to 252535442443 its reverse (344244535252), we get a palindrome (596779977695).

The spelling of 252535442443 in words is "two hundred fifty-two billion, five hundred thirty-five million, four hundred forty-two thousand, four hundred forty-three".