25756040 has 32 divisors (see below), whose sum is σ = 59823360. Its totient is φ = 9969600.

The previous prime is 25756019. The next prime is 25756051. The reversal of 25756040 is 4065752.

It is a junction number, because it is equal to n+sod(n) for n = 25755994 and 25756012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9146 + ... + 11625.

It is an arithmetic number, because the mean of its divisors is an integer number (1869480).

Almost surely, 2^25756040 is an apocalyptic number.

25756040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25756040 is an abundant number, since it is smaller than the sum of its proper divisors (34067320).

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

25756040 is a wasteful number, since it uses less digits than its factorization.

25756040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20813 (or 20809 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 25756040 is about 5075.0408865348. The cubic root of 25756040 is about 295.3201159724.

The spelling of 25756040 in words is "twenty-five million, seven hundred fifty-six thousand, forty".