25103040 has 112 divisors (see below), whose sum is σ = 80954880. Its totient is φ = 6589440.

The previous prime is 25103017. The next prime is 25103041. The reversal of 25103040 is 4030152.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (25103041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75675 + ... + 76005.

Almost surely, 2^25103040 is an apocalyptic number.

25103040 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 25103040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40477440).

25103040 is an abundant number, since it is smaller than the sum of its proper divisors (55851840).

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

25103040 is a wasteful number, since it uses less digits than its factorization.

25103040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 25103040 is about 5010.2934045822. The cubic root of 25103040 is about 292.8029442207.

Adding to 25103040 its reverse (4030152), we get a palindrome (29133192).

The spelling of 25103040 in words is "twenty-five million, one hundred three thousand, forty".