25705312 has 24 divisors (see below), whose sum is σ = 50739696. Its totient is φ = 12819072.

The previous prime is 25705307. The next prime is 25705313. The reversal of 25705312 is 21350752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25705313) 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, 15298 + ... + 16894.

It is an arithmetic number, because the mean of its divisors is an integer number (2114154).

Almost surely, 2^25705312 is an apocalyptic number.

It is an amenable number.

25705312 is a deficient number, since it is larger than the sum of its proper divisors (25034384).

25705312 is a wasteful number, since it uses less digits than its factorization.

25705312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110 (or 2102 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 25705312 is about 5070.0406310009. The cubic root of 25705312 is about 295.1261052351.

The spelling of 25705312 in words is "twenty-five million, seven hundred five thousand, three hundred twelve".