545541545 has 4 divisors (see below), whose sum is σ = 654649860. Its totient is φ = 436433232.

The previous prime is 545541539. The next prime is 545541551. The reversal of 545541545 is 545145545.

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

It is an interprime number because it is at equal distance from previous prime (545541539) and next prime (545541551).

It can be written as a sum of positive squares in 2 ways, for example, as 191988736 + 353552809 = 13856^2 + 18803^2 .

It is a cyclic number.

It is not a de Polignac number, because 545541545 - 2⁶ = 545541481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545541499 and 545541508.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 54554150 + ... + 54554159.

It is an arithmetic number, because the mean of its divisors is an integer number (163662465).

Almost surely, 2^545541545 is an apocalyptic number.

It is an amenable number.

545541545 is a deficient number, since it is larger than the sum of its proper divisors (109108315).

545541545 is a wasteful number, since it uses less digits than its factorization.

545541545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109108314.

The product of its digits is 200000, while the sum is 38.

The square root of 545541545 is about 23356.8307995755. The cubic root of 545541545 is about 817.1013783541.

The spelling of 545541545 in words is "five hundred forty-five million, five hundred forty-one thousand, five hundred forty-five".