25850287 has 2 divisors, whose sum is σ = 25850288. Its totient is φ = 25850286.

The previous prime is 25850261. The next prime is 25850303. The reversal of 25850287 is 78205852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25850287 - 2¹¹ = 25848239 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 (25850257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12925143 + 12925144.

It is an arithmetic number, because the mean of its divisors is an integer number (12925144).

Almost surely, 2^25850287 is an apocalyptic number.

25850287 is a deficient number, since it is larger than the sum of its proper divisors (1).

25850287 is an equidigital number, since it uses as much as digits as its factorization.

25850287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 25850287 is about 5084.3177516752. The cubic root of 25850287 is about 295.6798911909.

The spelling of 25850287 in words is "twenty-five million, eight hundred fifty thousand, two hundred eighty-seven".