25712756 has 6 divisors (see below), whose sum is σ = 44997330. Its totient is φ = 12856376.

The previous prime is 25712749. The next prime is 25712759. The reversal of 25712756 is 65721752.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25664356 + 48400 = 5066^2 + 220^2 .

It is a super-2 number, since 2×25712756² = 1322291642231072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25712759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214091 + ... + 3214098.

It is an arithmetic number, because the mean of its divisors is an integer number (7499555).

Almost surely, 2^25712756 is an apocalyptic number.

It is an amenable number.

25712756 is a deficient number, since it is larger than the sum of its proper divisors (19284574).

25712756 is a wasteful number, since it uses less digits than its factorization.

25712756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6428193 (or 6428191 counting only the distinct ones).

The product of its digits is 29400, while the sum is 35.

The square root of 25712756 is about 5070.7746942652. The cubic root of 25712756 is about 295.1545910035.

The spelling of 25712756 in words is "twenty-five million, seven hundred twelve thousand, seven hundred fifty-six".