25056040 has 32 divisors (see below), whose sum is σ = 57062880. Its totient is φ = 9900352.

The previous prime is 25056037. The next prime is 25056077. The reversal of 25056040 is 4065052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454 + ... + 7093.

It is an arithmetic number, because the mean of its divisors is an integer number (1783215).

Almost surely, 2^25056040 is an apocalyptic number.

25056040 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 25056040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28531440).

25056040 is an abundant number, since it is smaller than the sum of its proper divisors (32006840).

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

25056040 is a wasteful number, since it uses less digits than its factorization.

25056040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7641 (or 7637 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25056040 is about 5005.6008630333. The cubic root of 25056040 is about 292.6200933795.

The spelling of 25056040 in words is "twenty-five million, fifty-six thousand, forty".