25427951 has 2 divisors, whose sum is σ = 25427952. Its totient is φ = 25427950.

The previous prime is 25427887. The next prime is 25427953. The reversal of 25427951 is 15972452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25427951 - 2⁶ = 25427887 is a prime.

Together with 25427953, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25427953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12713975 + 12713976.

It is an arithmetic number, because the mean of its divisors is an integer number (12713976).

Almost surely, 2^25427951 is an apocalyptic number.

25427951 is a deficient number, since it is larger than the sum of its proper divisors (1).

25427951 is an equidigital number, since it uses as much as digits as its factorization.

25427951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 35.

The square root of 25427951 is about 5042.6135088860. The cubic root of 25427951 is about 294.0607915693.

The spelling of 25427951 in words is "twenty-five million, four hundred twenty-seven thousand, nine hundred fifty-one".