25968451 has 2 divisors, whose sum is σ = 25968452. Its totient is φ = 25968450.

The previous prime is 25968443. The next prime is 25968461. The reversal of 25968451 is 15486952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25968451 - 2³ = 25968443 is a prime.

It is not a weakly prime, because it can be changed into another prime (25968461) 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, 12984225 + 12984226.

It is an arithmetic number, because the mean of its divisors is an integer number (12984226).

Almost surely, 2^25968451 is an apocalyptic number.

25968451 is a deficient number, since it is larger than the sum of its proper divisors (1).

25968451 is an equidigital number, since it uses as much as digits as its factorization.

25968451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 25968451 is about 5095.9249405775. The cubic root of 25968451 is about 296.1297329719.

The spelling of 25968451 in words is "twenty-five million, nine hundred sixty-eight thousand, four hundred fifty-one".