25340407 has 2 divisors, whose sum is σ = 25340408. Its totient is φ = 25340406.

The previous prime is 25340401. The next prime is 25340443. The reversal of 25340407 is 70404352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25340407 - 2⁷ = 25340279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25340401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12670203 + 12670204.

It is an arithmetic number, because the mean of its divisors is an integer number (12670204).

Almost surely, 2^25340407 is an apocalyptic number.

25340407 is a deficient number, since it is larger than the sum of its proper divisors (1).

25340407 is an equidigital number, since it uses as much as digits as its factorization.

25340407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 25340407 is about 5033.9256053303. The cubic root of 25340407 is about 293.7229368760.

Adding to 25340407 its reverse (70404352), we get a palindrome (95744759).

The spelling of 25340407 in words is "twenty-five million, three hundred forty thousand, four hundred seven".