25471680 has 168 divisors, whose sum is σ = 88129872. Its totient is φ = 6230016.

The previous prime is 25471643. The next prime is 25471681. The reversal of 25471680 is 8617452.

It is not an unprimeable number, because it can be changed into a prime (25471681) 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, 162162 + ... + 162318.

Almost surely, 2^25471680 is an apocalyptic number.

25471680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25471680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44064936).

25471680 is an abundant number, since it is smaller than the sum of its proper divisors (62658192).

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

25471680 is a wasteful number, since it uses less digits than its factorization.

25471680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 25471680 is about 5046.9475923572. The cubic root of 25471680 is about 294.2292626099.

The spelling of 25471680 in words is "twenty-five million, four hundred seventy-one thousand, six hundred eighty".