25438741 has 2 divisors, whose sum is σ = 25438742. Its totient is φ = 25438740.

The previous prime is 25438729. The next prime is 25438789. The reversal of 25438741 is 14783452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18309841 + 7128900 = 4279^2 + 2670^2 .

It is a cyclic number.

It is not a de Polignac number, because 25438741 - 2⁵ = 25438709 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 25438697 and 25438706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25438841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12719370 + 12719371.

It is an arithmetic number, because the mean of its divisors is an integer number (12719371).

Almost surely, 2^25438741 is an apocalyptic number.

It is an amenable number.

25438741 is a deficient number, since it is larger than the sum of its proper divisors (1).

25438741 is an equidigital number, since it uses as much as digits as its factorization.

25438741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 34.

The square root of 25438741 is about 5043.6832771299. The cubic root of 25438741 is about 294.1023792333.

The spelling of 25438741 in words is "twenty-five million, four hundred thirty-eight thousand, seven hundred forty-one".