25805707 has 2 divisors, whose sum is σ = 25805708. Its totient is φ = 25805706.

The previous prime is 25805669. The next prime is 25805729. The reversal of 25805707 is 70750852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25805707 - 2⁷ = 25805579 is a prime.

It is not a weakly prime, because it can be changed into another prime (25805777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12902853 + 12902854.

It is an arithmetic number, because the mean of its divisors is an integer number (12902854).

Almost surely, 2^25805707 is an apocalyptic number.

25805707 is a deficient number, since it is larger than the sum of its proper divisors (1).

25805707 is an equidigital number, since it uses as much as digits as its factorization.

25805707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 25805707 is about 5079.9317908807. The cubic root of 25805707 is about 295.5098222328.

The spelling of 25805707 in words is "twenty-five million, eight hundred five thousand, seven hundred seven".