25552427 has 2 divisors, whose sum is σ = 25552428. Its totient is φ = 25552426.

The previous prime is 25552399. The next prime is 25552433. The reversal of 25552427 is 72425552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25552427 - 2¹⁸ = 25290283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25552393 and 25552402.

It is not a weakly prime, because it can be changed into another prime (25552447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12776213 + 12776214.

It is an arithmetic number, because the mean of its divisors is an integer number (12776214).

Almost surely, 2^25552427 is an apocalyptic number.

25552427 is a deficient number, since it is larger than the sum of its proper divisors (1).

25552427 is an equidigital number, since it uses as much as digits as its factorization.

25552427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 32.

The square root of 25552427 is about 5054.9408502969. The cubic root of 25552427 is about 294.5398437391.

Adding to 25552427 its reverse (72425552), we get a palindrome (97977979).

The spelling of 25552427 in words is "twenty-five million, five hundred fifty-two thousand, four hundred twenty-seven".