545244111 has 24 divisors (see below), whose sum is σ = 836076384. Its totient is φ = 341222400.

The previous prime is 545244103. The next prime is 545244113. The reversal of 545244111 is 111442545.

545244111 is a `hidden beast` number, since 545 + 2 + 4 + 4 + 111 = 666.

It is not a de Polignac number, because 545244111 - 2³ = 545244103 is a prime.

It is a super-2 number, since 2×545244111² = 594582281160360642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545244113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56910 + ... + 65796.

It is an arithmetic number, because the mean of its divisors is an integer number (34836516).

Almost surely, 2^545244111 is an apocalyptic number.

545244111 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

545244111 is a deficient number, since it is larger than the sum of its proper divisors (290832273).

545244111 is a wasteful number, since it uses less digits than its factorization.

545244111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9311 (or 9308 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 545244111 is about 23350.4627577271. The cubic root of 545244111 is about 816.9528544302.

Adding to 545244111 its reverse (111442545), we get a palindrome (656686656).

The spelling of 545244111 in words is "five hundred forty-five million, two hundred forty-four thousand, one hundred eleven".