545497056 has 144 divisors (see below), whose sum is σ = 1679356224. Its totient is φ = 166966272.

The previous prime is 545497027. The next prime is 545497063. The reversal of 545497056 is 650794545.

545497056 is a `hidden beast` number, since 54 + 549 + 7 + 0 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1373850 + ... + 1374246.

It is an arithmetic number, because the mean of its divisors is an integer number (11662196).

Almost surely, 2^545497056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545497056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (839678112).

545497056 is an abundant number, since it is smaller than the sum of its proper divisors (1133859168).

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

545497056 is a wasteful number, since it uses less digits than its factorization.

545497056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 545497056 is about 23355.8784035197. The cubic root of 545497056 is about 817.0791661677.

The spelling of 545497056 in words is "five hundred forty-five million, four hundred ninety-seven thousand, fifty-six".