25352543 has 2 divisors, whose sum is σ = 25352544. Its totient is φ = 25352542.

The previous prime is 25352539. The next prime is 25352557. The reversal of 25352543 is 34525352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25352543 - 2² = 25352539 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25352533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12676271 + 12676272.

It is an arithmetic number, because the mean of its divisors is an integer number (12676272).

Almost surely, 2^25352543 is an apocalyptic number.

25352543 is a deficient number, since it is larger than the sum of its proper divisors (1).

25352543 is an equidigital number, since it uses as much as digits as its factorization.

25352543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 29.

The square root of 25352543 is about 5035.1308821122. The cubic root of 25352543 is about 293.7698192151.

Adding to 25352543 its reverse (34525352), we get a palindrome (59877895).

The spelling of 25352543 in words is "twenty-five million, three hundred fifty-two thousand, five hundred forty-three".