545403321500 has 48 divisors (see below), whose sum is σ = 1191540430080. Its totient is φ = 218091809600.

The previous prime is 545403321469. The next prime is 545403321509. The reversal of 545403321500 is 5123304545.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545403321509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411286 + ... + 1755714.

It is an arithmetic number, because the mean of its divisors is an integer number (24823758960).

Almost surely, 2^545403321500 is an apocalyptic number.

545403321500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545403321500 is an abundant number, since it is smaller than the sum of its proper divisors (646137108580).

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

545403321500 is a wasteful number, since it uses less digits than its factorization.

545403321500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347615 (or 347603 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 545403321500 in words is "five hundred forty-five billion, four hundred three million, three hundred twenty-one thousand, five hundred".