25738429 has 2 divisors, whose sum is σ = 25738430. Its totient is φ = 25738428.

The previous prime is 25738417. The next prime is 25738439. The reversal of 25738429 is 92483752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22071204 + 3667225 = 4698^2 + 1915^2 .

It is a cyclic number.

It is not a de Polignac number, because 25738429 - 2⁵ = 25738397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25738391 and 25738400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25738439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12869214 + 12869215.

It is an arithmetic number, because the mean of its divisors is an integer number (12869215).

Almost surely, 2^25738429 is an apocalyptic number.

It is an amenable number.

25738429 is a deficient number, since it is larger than the sum of its proper divisors (1).

25738429 is an equidigital number, since it uses as much as digits as its factorization.

25738429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 25738429 is about 5073.3055299282. The cubic root of 25738429 is about 295.2527910731.

The spelling of 25738429 in words is "twenty-five million, seven hundred thirty-eight thousand, four hundred twenty-nine".