252043427 has 2 divisors, whose sum is σ = 252043428. Its totient is φ = 252043426.

The previous prime is 252043381. The next prime is 252043433. The reversal of 252043427 is 724340252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252043427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252043427.

It is not a weakly prime, because it can be changed into another prime (252043327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126021713 + 126021714.

It is an arithmetic number, because the mean of its divisors is an integer number (126021714).

Almost surely, 2^252043427 is an apocalyptic number.

252043427 is a deficient number, since it is larger than the sum of its proper divisors (1).

252043427 is an equidigital number, since it uses as much as digits as its factorization.

252043427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 252043427 is about 15875.8756293944. The cubic root of 252043427 is about 631.6722408229.

Adding to 252043427 its reverse (724340252), we get a palindrome (976383679).

The spelling of 252043427 in words is "two hundred fifty-two million, forty-three thousand, four hundred twenty-seven".