545969545 has 16 divisors (see below), whose sum is σ = 720639360. Its totient is φ = 397063920.

The previous prime is 545969537. The next prime is 545969549.

545969545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545969545 - 2³ = 545969537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545969492 and 545969501.

It is not an unprimeable number, because it can be changed into a prime (545969549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34365 + ... + 47674.

It is an arithmetic number, because the mean of its divisors is an integer number (45039960).

Almost surely, 2^545969545 is an apocalyptic number.

545969545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545969545 is a deficient number, since it is larger than the sum of its proper divisors (174669815).

545969545 is an equidigital number, since it uses as much as digits as its factorization.

545969545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82077 (or 82055 counting only the distinct ones).

The product of its digits is 4860000, while the sum is 52.

The square root of 545969545 is about 23365.9912051682. The cubic root of 545969545 is about 817.3150058200.

The spelling of 545969545 in words is "five hundred forty-five million, nine hundred sixty-nine thousand, five hundred forty-five".