252003643 has 2 divisors, whose sum is σ = 252003644. Its totient is φ = 252003642.

The previous prime is 252003641. The next prime is 252003667. The reversal of 252003643 is 346300252.

It is a happy number.

252003643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252003643 - 2¹ = 252003641 is a prime.

Together with 252003641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (252003641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126001821 + 126001822.

It is an arithmetic number, because the mean of its divisors is an integer number (126001822).

Almost surely, 2^252003643 is an apocalyptic number.

252003643 is a deficient number, since it is larger than the sum of its proper divisors (1).

252003643 is an equidigital number, since it uses as much as digits as its factorization.

252003643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 252003643 is about 15874.6226096875. The cubic root of 252003643 is about 631.6390034676.

Adding to 252003643 its reverse (346300252), we get a palindrome (598303895).

The spelling of 252003643 in words is "two hundred fifty-two million, three thousand, six hundred forty-three".