545525443 has 4 divisors (see below), whose sum is σ = 545727928. Its totient is φ = 545322960.

The previous prime is 545525437. The next prime is 545525503. The reversal of 545525443 is 344525545.

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-545525443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545525413) 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, 97146 + ... + 102607.

It is an arithmetic number, because the mean of its divisors is an integer number (136431982).

Almost surely, 2^545525443 is an apocalyptic number.

545525443 is a deficient number, since it is larger than the sum of its proper divisors (202485).

545525443 is a wasteful number, since it uses less digits than its factorization.

545525443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202484.

The product of its digits is 240000, while the sum is 37.

The square root of 545525443 is about 23356.4861012953. The cubic root of 545525443 is about 817.0933391889.

It can be divided in two parts, 54552 and 5443, that added together give a palindrome (59995).

The spelling of 545525443 in words is "five hundred forty-five million, five hundred twenty-five thousand, four hundred forty-three".