25687927 has 2 divisors, whose sum is σ = 25687928. Its totient is φ = 25687926.

The previous prime is 25687913. The next prime is 25687957. The reversal of 25687927 is 72978652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25687927 - 2¹⁹ = 25163639 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25687957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12843963 + 12843964.

It is an arithmetic number, because the mean of its divisors is an integer number (12843964).

Almost surely, 2^25687927 is an apocalyptic number.

25687927 is a deficient number, since it is larger than the sum of its proper divisors (1).

25687927 is an equidigital number, since it uses as much as digits as its factorization.

25687927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 46.

The square root of 25687927 is about 5068.3258577167. The cubic root of 25687927 is about 295.0595570647.

The spelling of 25687927 in words is "twenty-five million, six hundred eighty-seven thousand, nine hundred twenty-seven".