25441920 has 192 divisors, whose sum is σ = 100563840. Its totient is φ = 5806080.

The previous prime is 25441919. The next prime is 25441937. The reversal of 25441920 is 2914452.

It is a tau number, because it is divible by the number of its divisors (192).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40005 + ... + 40635.

It is an arithmetic number, because the mean of its divisors is an integer number (523770).

Almost surely, 2^25441920 is an apocalyptic number.

25441920 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 25441920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50281920).

25441920 is an abundant number, since it is smaller than the sum of its proper divisors (75121920).

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

25441920 is a wasteful number, since it uses less digits than its factorization.

25441920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 25441920 is about 5043.9984139569. The cubic root of 25441920 is about 294.1146297416.

The spelling of 25441920 in words is "twenty-five million, four hundred forty-one thousand, nine hundred twenty".