25495787 has 2 divisors, whose sum is σ = 25495788. Its totient is φ = 25495786.

The previous prime is 25495751. The next prime is 25495793. The reversal of 25495787 is 78759452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25495787 - 2²⁴ = 8718571 is a prime.

It is not a weakly prime, because it can be changed into another prime (25495747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12747893 + 12747894.

It is an arithmetic number, because the mean of its divisors is an integer number (12747894).

Almost surely, 2^25495787 is an apocalyptic number.

25495787 is a deficient number, since it is larger than the sum of its proper divisors (1).

25495787 is an equidigital number, since it uses as much as digits as its factorization.

25495787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 47.

The square root of 25495787 is about 5049.3353027899. The cubic root of 25495787 is about 294.3220551852.

The spelling of 25495787 in words is "twenty-five million, four hundred ninety-five thousand, seven hundred eighty-seven".