25467643 has 2 divisors, whose sum is σ = 25467644. Its totient is φ = 25467642.

The previous prime is 25467623. The next prime is 25467703. The reversal of 25467643 is 34676452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25467643 - 2⁹ = 25467131 is a prime.

It is equal to p_1593298 and since 25467643 and 1593298 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (25467623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12733821 + 12733822.

It is an arithmetic number, because the mean of its divisors is an integer number (12733822).

Almost surely, 2^25467643 is an apocalyptic number.

25467643 is a deficient number, since it is larger than the sum of its proper divisors (1).

25467643 is an equidigital number, since it uses as much as digits as its factorization.

25467643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 37.

The square root of 25467643 is about 5046.5476317974. The cubic root of 25467643 is about 294.2137176819.

It can be divided in two parts, 2 and 5467643, that added together give a palindrome (5467645).

The spelling of 25467643 in words is "twenty-five million, four hundred sixty-seven thousand, six hundred forty-three".