545213432550 has 96 divisors (see below), whose sum is σ = 1411334668800. Its totient is φ = 139027820800.

The previous prime is 545213432537. The next prime is 545213432557. The reversal of 545213432550 is 55234312545.

It is a junction number, because it is equal to n+sod(n) for n = 545213432499 and 545213432508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545213432557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12643426 + ... + 12686474.

It is an arithmetic number, because the mean of its divisors is an integer number (14701402800).

Almost surely, 2^545213432550 is an apocalyptic number.

545213432550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 545213432550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705667334400).

545213432550 is an abundant number, since it is smaller than the sum of its proper divisors (866121236250).

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

545213432550 is a wasteful number, since it uses less digits than its factorization.

545213432550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46758 (or 46753 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 545213432550 in words is "five hundred forty-five billion, two hundred thirteen million, four hundred thirty-two thousand, five hundred fifty".