545691264 has 64 divisors (see below), whose sum is σ = 1496282880. Its totient is φ = 176025600.

The previous prime is 545691257. The next prime is 545691269. The reversal of 545691264 is 462196545.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (545691269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11017 + ... + 34824.

It is an arithmetic number, because the mean of its divisors is an integer number (23379420).

Almost surely, 2^545691264 is an apocalyptic number.

It is an amenable number.

545691264 is an abundant number, since it is smaller than the sum of its proper divisors (950591616).

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

545691264 is a wasteful number, since it uses less digits than its factorization.

545691264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45889 (or 45877 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 545691264 is about 23360.0356164112. The cubic root of 545691264 is about 817.1761202400.

The spelling of 545691264 in words is "five hundred forty-five million, six hundred ninety-one thousand, two hundred sixty-four".