25780712 has 32 divisors (see below), whose sum is σ = 49986720. Its totient is φ = 12456000.

The previous prime is 25780709. The next prime is 25780763. The reversal of 25780712 is 21708752.

It is a super-2 number, since 2×25780712² = 1329290222453888, which contains 22 as substring.

It is an unprimeable number.

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, 74123 + ... + 74469.

It is an arithmetic number, because the mean of its divisors is an integer number (1562085).

Almost surely, 2^25780712 is an apocalyptic number.

It is an amenable number.

25780712 is a deficient number, since it is larger than the sum of its proper divisors (24206008).

25780712 is a wasteful number, since it uses less digits than its factorization.

25780712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 25780712 is about 5077.4710240434. The cubic root of 25780712 is about 295.4143826978.

The spelling of 25780712 in words is "twenty-five million, seven hundred eighty thousand, seven hundred twelve".