25756930 has 16 divisors (see below), whose sum is σ = 47961720. Its totient is φ = 9947392.

The previous prime is 25756909. The next prime is 25756931. The reversal of 25756930 is 3965752.

It can be written as a sum of positive squares in 4 ways, for example, as 20097289 + 5659641 = 4483^2 + 2379^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25756930.

It is not an unprimeable number, because it can be changed into a prime (25756931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44119 + ... + 44698.

Almost surely, 2^25756930 is an apocalyptic number.

25756930 is a deficient number, since it is larger than the sum of its proper divisors (22204790).

25756930 is a wasteful number, since it uses less digits than its factorization.

25756930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88853.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 25756930 is about 5075.1285698000. The cubic root of 25756930 is about 295.3235175289.

The spelling of 25756930 in words is "twenty-five million, seven hundred fifty-six thousand, nine hundred thirty".