545541111 has 6 divisors (see below), whose sum is σ = 788003840. Its totient is φ = 363694068.

The previous prime is 545541109. The next prime is 545541119. The reversal of 545541111 is 111145545.

545541111 is a `hidden beast` number, since 5 + 4 + 5 + 541 + 111 = 666.

It is not a de Polignac number, because 545541111 - 2¹ = 545541109 is a prime.

It is a super-2 number, since 2×545541111² = 595230207582228642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545541119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30307831 + ... + 30307848.

Almost surely, 2^545541111 is an apocalyptic number.

545541111 is a deficient number, since it is larger than the sum of its proper divisors (242462729).

545541111 is a wasteful number, since it uses less digits than its factorization.

545541111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60615685 (or 60615682 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 545541111 is about 23356.8215089297. The cubic root of 545541111 is about 817.1011616752.

Adding to 545541111 its reverse (111145545), we get a palindrome (656686656).

The spelling of 545541111 in words is "five hundred forty-five million, five hundred forty-one thousand, one hundred eleven".