25002443 has 2 divisors, whose sum is σ = 25002444. Its totient is φ = 25002442.

The previous prime is 25002433. The next prime is 25002451. The reversal of 25002443 is 34420052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25002443 - 2¹⁶ = 24936907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25002413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12501221 + 12501222.

It is an arithmetic number, because the mean of its divisors is an integer number (12501222).

Almost surely, 2^25002443 is an apocalyptic number.

25002443 is a deficient number, since it is larger than the sum of its proper divisors (1).

25002443 is an equidigital number, since it uses as much as digits as its factorization.

25002443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 25002443 is about 5000.2442940320. The cubic root of 25002443 is about 292.4112980115.

Adding to 25002443 its reverse (34420052), we get a palindrome (59422495).

The spelling of 25002443 in words is "twenty-five million, two thousand, four hundred forty-three".