545483591 has 4 divisors (see below), whose sum is σ = 564293400. Its totient is φ = 526673784.

The previous prime is 545483569. The next prime is 545483611. The reversal of 545483591 is 195384545.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 545483591 - 2¹⁴ = 545467207 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 (545488591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9404861 + ... + 9404918.

It is an arithmetic number, because the mean of its divisors is an integer number (141073350).

Almost surely, 2^545483591 is an apocalyptic number.

545483591 is a deficient number, since it is larger than the sum of its proper divisors (18809809).

545483591 is a wasteful number, since it uses less digits than its factorization.

545483591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18809808.

The product of its digits is 432000, while the sum is 44.

The square root of 545483591 is about 23355.5901445457. The cubic root of 545483591 is about 817.0724432097.

The spelling of 545483591 in words is "five hundred forty-five million, four hundred eighty-three thousand, five hundred ninety-one".