25986000 has 160 divisors (see below), whose sum is σ = 86351616. Its totient is φ = 6720000.

The previous prime is 25985983. The next prime is 25986007. The reversal of 25986000 is 68952.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25986007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365965 + ... + 366035.

Almost surely, 2^25986000 is an apocalyptic number.

25986000 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 25986000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43175808).

25986000 is an abundant number, since it is smaller than the sum of its proper divisors (60365616).

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

25986000 is a wasteful number, since it uses less digits than its factorization.

25986000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 25986000 is about 5097.6465157953. The cubic root of 25986000 is about 296.1964242877.

The spelling of 25986000 in words is "twenty-five million, nine hundred eighty-six thousand".