25460540 has 48 divisors (see below), whose sum is σ = 63770112. Its totient is φ = 8348736.

The previous prime is 25460537. The next prime is 25460573. The reversal of 25460540 is 4506452.

It is a congruent number.

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, 734 + ... + 7173.

It is an arithmetic number, because the mean of its divisors is an integer number (1328544).

Almost surely, 2^25460540 is an apocalyptic number.

25460540 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 25460540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31885056).

25460540 is an abundant number, since it is smaller than the sum of its proper divisors (38309572).

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

25460540 is a wasteful number, since it uses less digits than its factorization.

25460540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7946 (or 7944 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 25460540 is about 5045.8438342858. The cubic root of 25460540 is about 294.1863627837.

Adding to 25460540 its reverse (4506452), we get a palindrome (29966992).

The spelling of 25460540 in words is "twenty-five million, four hundred sixty thousand, five hundred forty".