25682860 has 72 divisors (see below), whose sum is σ = 63776160. Its totient is φ = 8660736.

The previous prime is 25682857. The next prime is 25682863. The reversal of 25682860 is 6828652.

It is an interprime number because it is at equal distance from previous prime (25682857) and next prime (25682863).

It is not an unprimeable number, because it can be changed into a prime (25682863) 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, 71361 + ... + 71719.

It is an arithmetic number, because the mean of its divisors is an integer number (885780).

Almost surely, 2^25682860 is an apocalyptic number.

25682860 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 25682860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31888080).

25682860 is an abundant number, since it is smaller than the sum of its proper divisors (38093300).

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

25682860 is a wasteful number, since it uses less digits than its factorization.

25682860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 25682860 is about 5067.8259638626. The cubic root of 25682860 is about 295.0401554071.

The spelling of 25682860 in words is "twenty-five million, six hundred eighty-two thousand, eight hundred sixty".