25814161 has 4 divisors (see below), whose sum is σ = 25874212. Its totient is φ = 25754112.

The previous prime is 25814153. The next prime is 25814167. The reversal of 25814161 is 16141852.

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 16321600 + 9492561 = 4040^2 + 3081^2 .

It is a cyclic number.

It is not a de Polignac number, because 25814161 - 2³ = 25814153 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25814167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29376 + ... + 30241.

It is an arithmetic number, because the mean of its divisors is an integer number (6468553).

Almost surely, 2^25814161 is an apocalyptic number.

It is an amenable number.

25814161 is a deficient number, since it is larger than the sum of its proper divisors (60051).

25814161 is an equidigital number, since it uses as much as digits as its factorization.

25814161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60050.

The product of its digits is 1920, while the sum is 28.

The square root of 25814161 is about 5080.7638205294. The cubic root of 25814161 is about 295.5420885745.

The spelling of 25814161 in words is "twenty-five million, eight hundred fourteen thousand, one hundred sixty-one".