25810768 has 10 divisors (see below), whose sum is σ = 50008394. Its totient is φ = 12905376.

The previous prime is 25810751. The next prime is 25810769. The reversal of 25810768 is 86701852.

It can be written as a sum of positive squares in only one way, i.e., 25280784 + 529984 = 5028^2 + 728^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25810769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806571 + ... + 806602.

Almost surely, 2^25810768 is an apocalyptic number.

It is an amenable number.

25810768 is a deficient number, since it is larger than the sum of its proper divisors (24197626).

25810768 is a wasteful number, since it uses less digits than its factorization.

25810768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613181 (or 1613175 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 25810768 is about 5080.4299030692. The cubic root of 25810768 is about 295.5291393739.

It can be divided in two parts, 258 and 10768, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 25810768 in words is "twenty-five million, eight hundred ten thousand, seven hundred sixty-eight".