25840972 has 24 divisors (see below), whose sum is σ = 47325600. Its totient is φ = 12329856.

The previous prime is 25840961. The next prime is 25840981. The reversal of 25840972 is 27904852.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9073 + ... + 11575.

It is an arithmetic number, because the mean of its divisors is an integer number (1971900).

Almost surely, 2^25840972 is an apocalyptic number.

It is an amenable number.

25840972 is a deficient number, since it is larger than the sum of its proper divisors (21484628).

25840972 is a wasteful number, since it uses less digits than its factorization.

25840972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625 (or 2623 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 25840972 is about 5083.4016170277. The cubic root of 25840972 is about 295.6443714166.

The spelling of 25840972 in words is "twenty-five million, eight hundred forty thousand, nine hundred seventy-two".