25582787 has 2 divisors, whose sum is σ = 25582788. Its totient is φ = 25582786.

The previous prime is 25582771. The next prime is 25582789. The reversal of 25582787 is 78728552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25582787 - 2⁴ = 25582771 is a prime.

Together with 25582789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25582789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12791393 + 12791394.

It is an arithmetic number, because the mean of its divisors is an integer number (12791394).

Almost surely, 2^25582787 is an apocalyptic number.

25582787 is a deficient number, since it is larger than the sum of its proper divisors (1).

25582787 is an equidigital number, since it uses as much as digits as its factorization.

25582787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313600, while the sum is 44.

The square root of 25582787 is about 5057.9429613233. The cubic root of 25582787 is about 294.6564496286.

The spelling of 25582787 in words is "twenty-five million, five hundred eighty-two thousand, seven hundred eighty-seven".