25989120 has 208 divisors, whose sum is σ = 94360320. Its totient is φ = 6782976.

The previous prime is 25989109. The next prime is 25989143. The reversal of 25989120 is 2198952.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552937 + ... + 552983.

Almost surely, 2^25989120 is an apocalyptic number.

25989120 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 25989120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47180160).

25989120 is an abundant number, since it is smaller than the sum of its proper divisors (68371200).

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

25989120 is an equidigital number, since it uses as much as digits as its factorization.

25989120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 25989120 is about 5097.9525301831. The cubic root of 25989120 is about 296.2082780533.

The spelling of 25989120 in words is "twenty-five million, nine hundred eighty-nine thousand, one hundred twenty".