545523756 has 48 divisors (see below), whose sum is σ = 1333516800. Its totient is φ = 173339712.

The previous prime is 545523749. The next prime is 545523773. The reversal of 545523756 is 657325545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17571 + ... + 37413.

It is an arithmetic number, because the mean of its divisors is an integer number (27781600).

Almost surely, 2^545523756 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 545523756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666758400).

545523756 is an abundant number, since it is smaller than the sum of its proper divisors (787993044).

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

545523756 is a wasteful number, since it uses less digits than its factorization.

545523756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19958 (or 19956 counting only the distinct ones).

The product of its digits is 630000, while the sum is 42.

The square root of 545523756 is about 23356.4499871021. The cubic root of 545523756 is about 817.0924969197.

The spelling of 545523756 in words is "five hundred forty-five million, five hundred twenty-three thousand, seven hundred fifty-six".