25826987 has 2 divisors, whose sum is σ = 25826988. Its totient is φ = 25826986.

The previous prime is 25826981. The next prime is 25826993. The reversal of 25826987 is 78962852.

It is a balanced prime because it is at equal distance from previous prime (25826981) and next prime (25826993).

It is a cyclic number.

It is not a de Polignac number, because 25826987 - 2¹⁶ = 25761451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25826981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12913493 + 12913494.

It is an arithmetic number, because the mean of its divisors is an integer number (12913494).

Almost surely, 2^25826987 is an apocalyptic number.

25826987 is a deficient number, since it is larger than the sum of its proper divisors (1).

25826987 is an equidigital number, since it uses as much as digits as its factorization.

25826987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 47.

The square root of 25826987 is about 5082.0258755736. The cubic root of 25826987 is about 295.5910280590.

The spelling of 25826987 in words is "twenty-five million, eight hundred twenty-six thousand, nine hundred eighty-seven".