25764740 has 24 divisors (see below), whose sum is σ = 55366080. Its totient is φ = 10065888.

The previous prime is 25764721. The next prime is 25764757. The reversal of 25764740 is 4746752.

It is a self number, because there is not a number n which added to its sum of digits gives 25764740.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14120 + ... + 15839.

It is an arithmetic number, because the mean of its divisors is an integer number (2306920).

Almost surely, 2^25764740 is an apocalyptic number.

25764740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25764740 is an abundant number, since it is smaller than the sum of its proper divisors (29601340).

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

25764740 is a wasteful number, since it uses less digits than its factorization.

25764740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30011 (or 30009 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 25764740 is about 5075.8979501168. The cubic root of 25764740 is about 295.3533637824.

The spelling of 25764740 in words is "twenty-five million, seven hundred sixty-four thousand, seven hundred forty".