545390864 has 10 divisors (see below), whose sum is σ = 1056694830. Its totient is φ = 272695424.

The previous prime is 545390863. The next prime is 545390873. The reversal of 545390864 is 468093545.

It can be written as a sum of positive squares in only one way, i.e., 349390864 + 196000000 = 18692^2 + 14000^2 .

It is not an unprimeable number, because it can be changed into a prime (545390863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17043449 + ... + 17043480.

It is an arithmetic number, because the mean of its divisors is an integer number (105669483).

Almost surely, 2^545390864 is an apocalyptic number.

It is an amenable number.

545390864 is a deficient number, since it is larger than the sum of its proper divisors (511303966).

545390864 is a wasteful number, since it uses less digits than its factorization.

545390864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34086937 (or 34086931 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 545390864 is about 23353.6049465602. The cubic root of 545390864 is about 817.0261424158.

The spelling of 545390864 in words is "five hundred forty-five million, three hundred ninety thousand, eight hundred sixty-four".