25864823 has 2 divisors, whose sum is σ = 25864824. Its totient is φ = 25864822.

The previous prime is 25864807. The next prime is 25864831. The reversal of 25864823 is 32846852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25864823 - 2⁴ = 25864807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25863823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12932411 + 12932412.

It is an arithmetic number, because the mean of its divisors is an integer number (12932412).

Almost surely, 2^25864823 is an apocalyptic number.

25864823 is a deficient number, since it is larger than the sum of its proper divisors (1).

25864823 is an equidigital number, since it uses as much as digits as its factorization.

25864823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 38.

The square root of 25864823 is about 5085.7470444370. The cubic root of 25864823 is about 295.7353025363.

The spelling of 25864823 in words is "twenty-five million, eight hundred sixty-four thousand, eight hundred twenty-three".