5245543111 has 4 divisors (see below), whose sum is σ = 5259836512. Its totient is φ = 5231249712.

The previous prime is 5245543097. The next prime is 5245543117. The reversal of 5245543111 is 1113455425.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5245543111 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 (5245543117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7146150 + ... + 7146883.

It is an arithmetic number, because the mean of its divisors is an integer number (1314959128).

Almost surely, 2^5245543111 is an apocalyptic number.

5245543111 is a deficient number, since it is larger than the sum of its proper divisors (14293401).

5245543111 is a wasteful number, since it uses less digits than its factorization.

5245543111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14293400.

The product of its digits is 12000, while the sum is 31.

The square root of 5245543111 is about 72426.1217448511. The cubic root of 5245543111 is about 1737.5213652705.

Adding to 5245543111 its reverse (1113455425), we get a palindrome (6358998536).

The spelling of 5245543111 in words is "five billion, two hundred forty-five million, five hundred forty-three thousand, one hundred eleven".