25780268 has 24 divisors (see below), whose sum is σ = 46558512. Its totient is φ = 12481344.

The previous prime is 25780241. The next prime is 25780277. The reversal of 25780268 is 86208752.

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, 54971 + ... + 55437.

It is an arithmetic number, because the mean of its divisors is an integer number (1939938).

Almost surely, 2^25780268 is an apocalyptic number.

It is an amenable number.

25780268 is a deficient number, since it is larger than the sum of its proper divisors (20778244).

25780268 is a wasteful number, since it uses less digits than its factorization.

25780268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 25780268 is about 5077.4273013013. The cubic root of 25780268 is about 295.4126867951.

The spelling of 25780268 in words is "twenty-five million, seven hundred eighty thousand, two hundred sixty-eight".