545021325420 has 192 divisors, whose sum is σ = 1793531787264. Its totient is φ = 121916666880.

The previous prime is 545021325389. The next prime is 545021325421. The reversal of 545021325420 is 24523120545.

It is a happy number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (545021325421) 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 63 ways as a sum of consecutive naturals, for example, 25926834 + ... + 25947846.

It is an arithmetic number, because the mean of its divisors is an integer number (9341311392).

Almost surely, 2^545021325420 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 545021325420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896765893632).

545021325420 is an abundant number, since it is smaller than the sum of its proper divisors (1248510461844).

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

545021325420 is a wasteful number, since it uses less digits than its factorization.

545021325420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24072 (or 24070 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 545021325420 its reverse (24523120545), we get a palindrome (569544445965).

The spelling of 545021325420 in words is "five hundred forty-five billion, twenty-one million, three hundred twenty-five thousand, four hundred twenty".