25950913 has 4 divisors (see below), whose sum is σ = 25977940. Its totient is φ = 25923888.

The previous prime is 25950907. The next prime is 25950917. The reversal of 25950913 is 31905952.

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 10647169 + 15303744 = 3263^2 + 3912^2 .

It is a cyclic number.

It is not a de Polignac number, because 25950913 - 2⁹ = 25950401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25950917) 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, 12018 + ... + 14011.

It is an arithmetic number, because the mean of its divisors is an integer number (6494485).

Almost surely, 2^25950913 is an apocalyptic number.

It is an amenable number.

25950913 is a deficient number, since it is larger than the sum of its proper divisors (27027).

25950913 is an equidigital number, since it uses as much as digits as its factorization.

25950913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27026.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 25950913 is about 5094.2038632155. The cubic root of 25950913 is about 296.0630534351.

The spelling of 25950913 in words is "twenty-five million, nine hundred fifty thousand, nine hundred thirteen".