25042541 has 2 divisors, whose sum is σ = 25042542. Its totient is φ = 25042540.

The previous prime is 25042529. The next prime is 25042543. The reversal of 25042541 is 14524052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22762441 + 2280100 = 4771^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 25042541 - 2⁶ = 25042477 is a prime.

Together with 25042543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25042543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12521270 + 12521271.

It is an arithmetic number, because the mean of its divisors is an integer number (12521271).

Almost surely, 2^25042541 is an apocalyptic number.

It is an amenable number.

25042541 is a deficient number, since it is larger than the sum of its proper divisors (1).

25042541 is an equidigital number, since it uses as much as digits as its factorization.

25042541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 25042541 is about 5004.2522918014. The cubic root of 25042541 is about 292.5675340202.

Adding to 25042541 its reverse (14524052), we get a palindrome (39566593).

The spelling of 25042541 in words is "twenty-five million, forty-two thousand, five hundred forty-one".