25854847 has 2 divisors, whose sum is σ = 25854848. Its totient is φ = 25854846.

The previous prime is 25854827. The next prime is 25854869. The reversal of 25854847 is 74845852.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25854847 is a prime.

It is a super-2 number, since 2×25854847² = 1336946226786818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25854827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12927423 + 12927424.

It is an arithmetic number, because the mean of its divisors is an integer number (12927424).

Almost surely, 2^25854847 is an apocalyptic number.

25854847 is a deficient number, since it is larger than the sum of its proper divisors (1).

25854847 is an equidigital number, since it uses as much as digits as its factorization.

25854847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 358400, while the sum is 43.

The square root of 25854847 is about 5084.7661696483. The cubic root of 25854847 is about 295.6972761821.

The spelling of 25854847 in words is "twenty-five million, eight hundred fifty-four thousand, eight hundred forty-seven".