545505041 has 4 divisors (see below), whose sum is σ = 558810084. Its totient is φ = 532200000.

The previous prime is 545505001. The next prime is 545505071. The reversal of 545505041 is 140505545.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140505545 = 5 ⋅28101109.

It can be written as a sum of positive squares in 2 ways, for example, as 228130816 + 317374225 = 15104^2 + 17815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545505041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545504995 and 545505013.

It is not an unprimeable number, because it can be changed into a prime (545505001) 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, 6652460 + ... + 6652541.

It is an arithmetic number, because the mean of its divisors is an integer number (139702521).

Almost surely, 2^545505041 is an apocalyptic number.

It is an amenable number.

545505041 is a deficient number, since it is larger than the sum of its proper divisors (13305043).

545505041 is a wasteful number, since it uses less digits than its factorization.

545505041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13305042.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 545505041 is about 23356.0493448699. The cubic root of 545505041 is about 817.0831529569.

The spelling of 545505041 in words is "five hundred forty-five million, five hundred five thousand, forty-one".