25646041 has 2 divisors, whose sum is σ = 25646042. Its totient is φ = 25646040.

The previous prime is 25646009. The next prime is 25646119. The reversal of 25646041 is 14064652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25210441 + 435600 = 5021^2 + 660^2 .

It is a cyclic number.

It is not a de Polignac number, because 25646041 - 2⁵ = 25646009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25646741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12823020 + 12823021.

It is an arithmetic number, because the mean of its divisors is an integer number (12823021).

Almost surely, 2^25646041 is an apocalyptic number.

It is an amenable number.

25646041 is a deficient number, since it is larger than the sum of its proper divisors (1).

25646041 is an equidigital number, since it uses as much as digits as its factorization.

25646041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 25646041 is about 5064.1920382229. The cubic root of 25646041 is about 294.8990979245.

The spelling of 25646041 in words is "twenty-five million, six hundred forty-six thousand, forty-one".