25755740 has 12 divisors (see below), whose sum is σ = 54087096. Its totient is φ = 10302288.

The previous prime is 25755733. The next prime is 25755767. The reversal of 25755740 is 4755752.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25755740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643874 + ... + 643913.

It is an arithmetic number, because the mean of its divisors is an integer number (4507258).

Almost surely, 2^25755740 is an apocalyptic number.

25755740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25755740 is an abundant number, since it is smaller than the sum of its proper divisors (28331356).

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

25755740 is a wasteful number, since it uses less digits than its factorization.

25755740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287796 (or 1287794 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 25755740 is about 5075.0113300366. The cubic root of 25755740 is about 295.3189693627.

The spelling of 25755740 in words is "twenty-five million, seven hundred fifty-five thousand, seven hundred forty".