25261823 has 2 divisors, whose sum is σ = 25261824. Its totient is φ = 25261822.

The previous prime is 25261799. The next prime is 25261829. The reversal of 25261823 is 32816252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25261823 - 2⁶ = 25261759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25261829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12630911 + 12630912.

It is an arithmetic number, because the mean of its divisors is an integer number (12630912).

Almost surely, 2^25261823 is an apocalyptic number.

25261823 is a deficient number, since it is larger than the sum of its proper divisors (1).

25261823 is an equidigital number, since it uses as much as digits as its factorization.

25261823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 25261823 is about 5026.1141053502. The cubic root of 25261823 is about 293.4189977363.

The spelling of 25261823 in words is "twenty-five million, two hundred sixty-one thousand, eight hundred twenty-three".