545505057 has 8 divisors (see below), whose sum is σ = 808155680. Its totient is φ = 363670020.

The previous prime is 545505001. The next prime is 545505071. The reversal of 545505057 is 750505545.

It is a happy number.

545505057 is a `hidden beast` number, since 5 + 4 + 550 + 50 + 57 = 666.

It is not a de Polignac number, because 545505057 - 2¹⁵ = 545472289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545501057) 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 7 ways as a sum of consecutive naturals, for example, 10101919 + ... + 10101972.

It is an arithmetic number, because the mean of its divisors is an integer number (101019460).

Almost surely, 2^545505057 is an apocalyptic number.

It is an amenable number.

545505057 is a deficient number, since it is larger than the sum of its proper divisors (262650623).

545505057 is a wasteful number, since it uses less digits than its factorization.

545505057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20203900 (or 20203894 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 36.

The square root of 545505057 is about 23356.0496873936. The cubic root of 545505057 is about 817.0831609454.

The spelling of 545505057 in words is "five hundred forty-five million, five hundred five thousand, fifty-seven".