545224342520 has 128 divisors (see below), whose sum is σ = 1441800138240. Its totient is φ = 182939005440.

The previous prime is 545224342489. The next prime is 545224342561. The reversal of 545224342520 is 25243422545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15328997 + ... + 15364523.

It is an arithmetic number, because the mean of its divisors is an integer number (11264063580).

Almost surely, 2^545224342520 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 545224342520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720900069120).

545224342520 is an abundant number, since it is smaller than the sum of its proper divisors (896575795720).

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

545224342520 is a wasteful number, since it uses less digits than its factorization.

545224342520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38245 (or 38241 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 38.

The spelling of 545224342520 in words is "five hundred forty-five billion, two hundred twenty-four million, three hundred forty-two thousand, five hundred twenty".