11425543 has 4 divisors (see below), whose sum is σ = 11526768. Its totient is φ = 11324320.

The previous prime is 11425537. The next prime is 11425597. The reversal of 11425543 is 34552411.

It is a happy number.

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 11425543 - 2⁹ = 11425031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11425243) 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 in 3 ways as a sum of consecutive naturals, for example, 50443 + ... + 50668.

It is an arithmetic number, because the mean of its divisors is an integer number (2881692).

Almost surely, 2^11425543 is an apocalyptic number.

11425543 is a deficient number, since it is larger than the sum of its proper divisors (101225).

11425543 is a wasteful number, since it uses less digits than its factorization.

11425543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101224.

The product of its digits is 2400, while the sum is 25.

The square root of 11425543 is about 3380.1690786113. The cubic root of 11425543 is about 225.2296782237.

Adding to 11425543 its reverse (34552411), we get a palindrome (45977954).

The spelling of 11425543 in words is "eleven million, four hundred twenty-five thousand, five hundred forty-three".