25995407 has 2 divisors, whose sum is σ = 25995408. Its totient is φ = 25995406.

The previous prime is 25995383. The next prime is 25995413. The reversal of 25995407 is 70459952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25995407 is a prime.

It is a super-2 number, since 2×25995407² = 1351522370191298, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25995427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12997703 + 12997704.

It is an arithmetic number, because the mean of its divisors is an integer number (12997704).

Almost surely, 2^25995407 is an apocalyptic number.

25995407 is a deficient number, since it is larger than the sum of its proper divisors (1).

25995407 is an equidigital number, since it uses as much as digits as its factorization.

25995407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 25995407 is about 5098.5691129963. The cubic root of 25995407 is about 296.2321612693.

The spelling of 25995407 in words is "twenty-five million, nine hundred ninety-five thousand, four hundred seven".