25765660 has 24 divisors (see below), whose sum is σ = 54245520. Its totient is φ = 10280064.

The previous prime is 25765651. The next prime is 25765669. The reversal of 25765660 is 6656752.

It is an interprime number because it is at equal distance from previous prime (25765651) and next prime (25765669).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25765669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7731 + ... + 10549.

It is an arithmetic number, because the mean of its divisors is an integer number (2260230).

Almost surely, 2^25765660 is an apocalyptic number.

25765660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25765660 is an abundant number, since it is smaller than the sum of its proper divisors (28479860).

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

25765660 is a wasteful number, since it uses less digits than its factorization.

25765660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285 (or 3283 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 25765660 is about 5075.9885736672. The cubic root of 25765660 is about 295.3568792052.

The spelling of 25765660 in words is "twenty-five million, seven hundred sixty-five thousand, six hundred sixty".