25676543 has 4 divisors (see below), whose sum is σ = 27027960. Its totient is φ = 24325128.

The previous prime is 25676503. The next prime is 25676549. The reversal of 25676543 is 34567652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25676543 - 2¹⁰ = 25675519 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25676497 and 25676506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25676549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675680 + ... + 675717.

It is an arithmetic number, because the mean of its divisors is an integer number (6756990).

Almost surely, 2^25676543 is an apocalyptic number.

25676543 is a deficient number, since it is larger than the sum of its proper divisors (1351417).

25676543 is a wasteful number, since it uses less digits than its factorization.

25676543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351416.

The product of its digits is 151200, while the sum is 38.

The square root of 25676543 is about 5067.2026799803. The cubic root of 25676543 is about 295.0159638972.

The spelling of 25676543 in words is "twenty-five million, six hundred seventy-six thousand, five hundred forty-three".