25755913 has 4 divisors (see below), whose sum is σ = 26384148. Its totient is φ = 25127680.

The previous prime is 25755893. The next prime is 25755931. The reversal of 25755913 is 31955752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 725904 + 25030009 = 852^2 + 5003^2 .

It is a cyclic number.

It is not a de Polignac number, because 25755913 - 2⁵ = 25755881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25755113) 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 3 ways as a sum of consecutive naturals, for example, 314056 + ... + 314137.

It is an arithmetic number, because the mean of its divisors is an integer number (6596037).

Almost surely, 2^25755913 is an apocalyptic number.

It is an amenable number.

25755913 is a deficient number, since it is larger than the sum of its proper divisors (628235).

25755913 is an equidigital number, since it uses as much as digits as its factorization.

25755913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628234.

The product of its digits is 47250, while the sum is 37.

The square root of 25755913 is about 5075.0283743049. The cubic root of 25755913 is about 295.3196305754.

The spelling of 25755913 in words is "twenty-five million, seven hundred fifty-five thousand, nine hundred thirteen".