25542607 has 2 divisors, whose sum is σ = 25542608. Its totient is φ = 25542606.

The previous prime is 25542599. The next prime is 25542613. The reversal of 25542607 is 70624552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25542607 - 2³ = 25542599 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25542677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12771303 + 12771304.

It is an arithmetic number, because the mean of its divisors is an integer number (12771304).

Almost surely, 2^25542607 is an apocalyptic number.

25542607 is a deficient number, since it is larger than the sum of its proper divisors (1).

25542607 is an equidigital number, since it uses as much as digits as its factorization.

25542607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 25542607 is about 5053.9694300619. The cubic root of 25542607 is about 294.5021075733.

The spelling of 25542607 in words is "twenty-five million, five hundred forty-two thousand, six hundred seven".