25543351 has 2 divisors, whose sum is σ = 25543352. Its totient is φ = 25543350.

The previous prime is 25543339. The next prime is 25543373. The reversal of 25543351 is 15334552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25543351 - 2⁵ = 25543319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25543381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12771675 + 12771676.

It is an arithmetic number, because the mean of its divisors is an integer number (12771676).

Almost surely, 2^25543351 is an apocalyptic number.

25543351 is a deficient number, since it is larger than the sum of its proper divisors (1).

25543351 is an equidigital number, since it uses as much as digits as its factorization.

25543351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 28.

The square root of 25543351 is about 5054.0430350364. The cubic root of 25543351 is about 294.5049669452.

The spelling of 25543351 in words is "twenty-five million, five hundred forty-three thousand, three hundred fifty-one".