25278712 has 16 divisors (see below), whose sum is σ = 47590200. Its totient is φ = 12588000.

The previous prime is 25278703. The next prime is 25278713. The reversal of 25278712 is 21787252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25278713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4287 + ... + 8302.

Almost surely, 2^25278712 is an apocalyptic number.

It is an amenable number.

25278712 is a deficient number, since it is larger than the sum of its proper divisors (22311488).

25278712 is a wasteful number, since it uses less digits than its factorization.

25278712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12846 (or 12842 counting only the distinct ones).

The product of its digits is 15680, while the sum is 34.

The square root of 25278712 is about 5027.7939496364. The cubic root of 25278712 is about 293.4843723994.

The spelling of 25278712 in words is "twenty-five million, two hundred seventy-eight thousand, seven hundred twelve".