25422427 has 2 divisors, whose sum is σ = 25422428. Its totient is φ = 25422426.

The previous prime is 25422379. The next prime is 25422431. The reversal of 25422427 is 72422452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25422427 - 2¹¹ = 25420379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25422395 and 25422404.

It is not a weakly prime, because it can be changed into another prime (25422487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12711213 + 12711214.

It is an arithmetic number, because the mean of its divisors is an integer number (12711214).

Almost surely, 2^25422427 is an apocalyptic number.

25422427 is a deficient number, since it is larger than the sum of its proper divisors (1).

25422427 is an equidigital number, since it uses as much as digits as its factorization.

25422427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 28.

The square root of 25422427 is about 5042.0657472905. The cubic root of 25422427 is about 294.0394959819.

Adding to 25422427 its reverse (72422452), we get a palindrome (97844879).

The spelling of 25422427 in words is "twenty-five million, four hundred twenty-two thousand, four hundred twenty-seven".