545989545 has 32 divisors (see below), whose sum is σ = 972743040. Its totient is φ = 290566080.

The previous prime is 545989523. The next prime is 545989547.

545989545 is a `hidden beast` number, since 5 + 4 + 5 + 98 + 9 + 545 = 666.

545989545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545989545 - 2⁹ = 545989033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545989491 and 545989500.

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

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62167 + ... + 70403.

It is an arithmetic number, because the mean of its divisors is an integer number (30398220).

Almost surely, 2^545989545 is an apocalyptic number.

It is an amenable number.

545989545 is a deficient number, since it is larger than the sum of its proper divisors (426753495).

545989545 is a wasteful number, since it uses less digits than its factorization.

545989545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8742 (or 8736 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 54.

The square root of 545989545 is about 23366.4191736774. The cubic root of 545989545 is about 817.3249856810.

The spelling of 545989545 in words is "five hundred forty-five million, nine hundred eighty-nine thousand, five hundred forty-five".