545505545 has 16 divisors (see below), whose sum is σ = 711949392. Its totient is φ = 398841600.

The previous prime is 545505529. The next prime is 545505551.

545505545 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 2809 + 545502736 = 53^2 + 23356^2 .

It is not a de Polignac number, because 545505545 - 2⁴ = 545505529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545505499 and 545505508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34982 + ... + 48111.

It is an arithmetic number, because the mean of its divisors is an integer number (44496837).

Almost surely, 2^545505545 is an apocalyptic number.

It is an amenable number.

545505545 is a deficient number, since it is larger than the sum of its proper divisors (166443847).

545505545 is a wasteful number, since it uses less digits than its factorization.

545505545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83212.

The product of its (nonzero) digits is 250000, while the sum is 38.

The square root of 545505545 is about 23356.0601343634. The cubic root of 545505545 is about 817.0834045952.

The spelling of 545505545 in words is "five hundred forty-five million, five hundred five thousand, five hundred forty-five".