25441020 has 96 divisors (see below), whose sum is σ = 86365440. Its totient is φ = 6166080.

The previous prime is 25440979. The next prime is 25441043. The reversal of 25441020 is 2014452.

25441020 is a `hidden beast` number, since 254 + 410 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 25440984 and 25441002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3799 + ... + 8081.

It is an arithmetic number, because the mean of its divisors is an integer number (899640).

Almost surely, 2^25441020 is an apocalyptic number.

25441020 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 25441020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43182720).

25441020 is an abundant number, since it is smaller than the sum of its proper divisors (60924420).

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

25441020 is a wasteful number, since it uses less digits than its factorization.

25441020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312 (or 4304 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 25441020 is about 5043.9091982311. The cubic root of 25441020 is about 294.1111616295. Note that the first 4 decimals are identical.

Adding to 25441020 its reverse (2014452), we get a palindrome (27455472).

The spelling of 25441020 in words is "twenty-five million, four hundred forty-one thousand, twenty".