25847880 has 32 divisors (see below), whose sum is σ = 77544000. Its totient is φ = 6892736.

The previous prime is 25847879. The next prime is 25847891. The reversal of 25847880 is 8874852.

It is a super-2 number, since 2×25847880² = 1336225800988800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107580 + ... + 107819.

It is an arithmetic number, because the mean of its divisors is an integer number (2423250).

Almost surely, 2^25847880 is an apocalyptic number.

25847880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25847880 is an abundant number, since it is smaller than the sum of its proper divisors (51696120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25847880 is a wasteful number, since it uses less digits than its factorization.

25847880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215413 (or 215409 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 25847880 is about 5084.0810379065. The cubic root of 25847880 is about 295.6707136837.

The spelling of 25847880 in words is "twenty-five million, eight hundred forty-seven thousand, eight hundred eighty".