25787023 has 2 divisors, whose sum is σ = 25787024. Its totient is φ = 25787022.

The previous prime is 25786997. The next prime is 25787029. The reversal of 25787023 is 32078752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25787023 - 2¹⁷ = 25655951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25787023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25787029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12893511 + 12893512.

It is an arithmetic number, because the mean of its divisors is an integer number (12893512).

Almost surely, 2^25787023 is an apocalyptic number.

25787023 is a deficient number, since it is larger than the sum of its proper divisors (1).

25787023 is an equidigital number, since it uses as much as digits as its factorization.

25787023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 25787023 is about 5078.0924568188. The cubic root of 25787023 is about 295.4384860929.

The spelling of 25787023 in words is "twenty-five million, seven hundred eighty-seven thousand, twenty-three".