25804827 has 24 divisors (see below), whose sum is σ = 41187744. Its totient is φ = 15485184.

The previous prime is 25804817. The next prime is 25804829. The reversal of 25804827 is 72840852.

It is a happy number.

It is not a de Polignac number, because 25804827 - 2⁴ = 25804811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25804791 and 25804800.

It is not an unprimeable number, because it can be changed into a prime (25804829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148 + ... + 7185.

It is an arithmetic number, because the mean of its divisors is an integer number (1716156).

Almost surely, 2^25804827 is an apocalyptic number.

25804827 is a deficient number, since it is larger than the sum of its proper divisors (15382917).

25804827 is a wasteful number, since it uses less digits than its factorization.

25804827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7379 (or 7376 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 25804827 is about 5079.8451748060. The cubic root of 25804827 is about 295.5064631361.

The spelling of 25804827 in words is "twenty-five million, eight hundred four thousand, eight hundred twenty-seven".