25668941 has 4 divisors (see below), whose sum is σ = 25725084. Its totient is φ = 25612800.

The previous prime is 25668931. The next prime is 25668959. The reversal of 25668941 is 14986652.

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 9947716 + 15721225 = 3154^2 + 3965^2 .

It is a cyclic number.

It is not a de Polignac number, because 25668941 - 2²² = 21474637 is a prime.

It is a super-2 number, since 2×25668941² = 1317789064122962, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25668901) 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, 27380 + ... + 28301.

It is an arithmetic number, because the mean of its divisors is an integer number (6431271).

Almost surely, 2^25668941 is an apocalyptic number.

It is an amenable number.

25668941 is a deficient number, since it is larger than the sum of its proper divisors (56143).

25668941 is an equidigital number, since it uses as much as digits as its factorization.

25668941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56142.

The product of its digits is 103680, while the sum is 41.

The square root of 25668941 is about 5066.4525064388. The cubic root of 25668941 is about 294.9868461050.

The spelling of 25668941 in words is "twenty-five million, six hundred sixty-eight thousand, nine hundred forty-one".