545620064 has 48 divisors (see below), whose sum is σ = 1174824000. Its totient is φ = 247378560.

The previous prime is 545620037. The next prime is 545620129. The reversal of 545620064 is 460026545.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 545620064.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 154187 + ... + 157685.

It is an arithmetic number, because the mean of its divisors is an integer number (24475500).

Almost surely, 2^545620064 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 545620064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (587412000).

545620064 is an abundant number, since it is smaller than the sum of its proper divisors (629203936).

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

545620064 is a wasteful number, since it uses less digits than its factorization.

545620064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 545620064 is about 23358.5115964181. The cubic root of 545620064 is about 817.1405778773.

The spelling of 545620064 in words is "five hundred forty-five million, six hundred twenty thousand, sixty-four".