545989544 has 32 divisors (see below), whose sum is σ = 1089676800. Its totient is φ = 255578880.

The previous prime is 545989523. The next prime is 545989547. The reversal of 545989544 is 445989545.

It is not an unprimeable number, because it can be changed into a prime (545989547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15467 + ... + 36485.

It is an arithmetic number, because the mean of its divisors is an integer number (34052400).

Almost surely, 2^545989544 is an apocalyptic number.

It is an amenable number.

545989544 is a deficient number, since it is larger than the sum of its proper divisors (543687256).

545989544 is a wasteful number, since it uses less digits than its factorization.

545989544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21233 (or 21229 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 53.

The square root of 545989544 is about 23366.4191522792. The cubic root of 545989544 is about 817.3249851820.

Subtracting from 545989544 its reverse (445989545), we obtain a palindrome (99999999).

The spelling of 545989544 in words is "five hundred forty-five million, nine hundred eighty-nine thousand, five hundred forty-four".