25873947 has 12 divisors (see below), whose sum is σ = 40771224. Its totient is φ = 15681120.

The previous prime is 25873937. The next prime is 25873961. The reversal of 25873947 is 74937852.

25873947 is a `hidden beast` number, since 258 + 7 + 394 + 7 = 666.

It is not a de Polignac number, because 25873947 - 2⁴ = 25873931 is a prime.

It is a super-2 number, since 2×25873947² = 1338922266717618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25873907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130578 + ... + 130775.

It is an arithmetic number, because the mean of its divisors is an integer number (3397602).

Almost surely, 2^25873947 is an apocalyptic number.

25873947 is a deficient number, since it is larger than the sum of its proper divisors (14897277).

25873947 is a wasteful number, since it uses less digits than its factorization.

25873947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261370 (or 261367 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 25873947 is about 5086.6439820377. The cubic root of 25873947 is about 295.7700726908.

The spelling of 25873947 in words is "twenty-five million, eight hundred seventy-three thousand, nine hundred forty-seven".