25288787 has 2 divisors, whose sum is σ = 25288788. Its totient is φ = 25288786.

The previous prime is 25288771. The next prime is 25288789. The reversal of 25288787 is 78788252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25288787 - 2⁴ = 25288771 is a prime.

Together with 25288789, 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 (25288789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12644393 + 12644394.

It is an arithmetic number, because the mean of its divisors is an integer number (12644394).

Almost surely, 2^25288787 is an apocalyptic number.

25288787 is a deficient number, since it is larger than the sum of its proper divisors (1).

25288787 is an equidigital number, since it uses as much as digits as its factorization.

25288787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 501760, while the sum is 47.

The square root of 25288787 is about 5028.7957803037. The cubic root of 25288787 is about 293.5233572748.

The spelling of 25288787 in words is "twenty-five million, two hundred eighty-eight thousand, seven hundred eighty-seven".