545765028 has 12 divisors (see below), whose sum is σ = 1273451760. Its totient is φ = 181921672.

The previous prime is 545765023. The next prime is 545765029. The reversal of 545765028 is 820567545.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (545765023) 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, 22740198 + ... + 22740221.

It is an arithmetic number, because the mean of its divisors is an integer number (106120980).

Almost surely, 2^545765028 is an apocalyptic number.

It is an amenable number.

545765028 is an abundant number, since it is smaller than the sum of its proper divisors (727686732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545765028 is a wasteful number, since it uses less digits than its factorization.

545765028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45480426 (or 45480424 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The square root of 545765028 is about 23361.6144133919. The cubic root of 545765028 is about 817.2129392666.

The spelling of 545765028 in words is "five hundred forty-five million, seven hundred sixty-five thousand, twenty-eight".