25654823 has 2 divisors, whose sum is σ = 25654824. Its totient is φ = 25654822.

The previous prime is 25654781. The next prime is 25654829. The reversal of 25654823 is 32845652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25654823 - 2¹⁴ = 25638439 is a prime.

It is a super-2 number, since 2×25654823² = 1316339886322658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25654829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12827411 + 12827412.

It is an arithmetic number, because the mean of its divisors is an integer number (12827412).

Almost surely, 2^25654823 is an apocalyptic number.

25654823 is a deficient number, since it is larger than the sum of its proper divisors (1).

25654823 is an equidigital number, since it uses as much as digits as its factorization.

25654823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

The square root of 25654823 is about 5065.0590322325. The cubic root of 25654823 is about 294.9327549494.

The spelling of 25654823 in words is "twenty-five million, six hundred fifty-four thousand, eight hundred twenty-three".