25908947 has 2 divisors, whose sum is σ = 25908948. Its totient is φ = 25908946.

The previous prime is 25908943. The next prime is 25909001. The reversal of 25908947 is 74980952.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25908947 - 2² = 25908943 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25908898 and 25908907.

It is not a weakly prime, because it can be changed into another prime (25908943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12954473 + 12954474.

It is an arithmetic number, because the mean of its divisors is an integer number (12954474).

Almost surely, 2^25908947 is an apocalyptic number.

25908947 is a deficient number, since it is larger than the sum of its proper divisors (1).

25908947 is an equidigital number, since it uses as much as digits as its factorization.

25908947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 25908947 is about 5090.0832016776. The cubic root of 25908947 is about 295.9033765159.

The spelling of 25908947 in words is "twenty-five million, nine hundred eight thousand, nine hundred forty-seven".