545213620 has 48 divisors (see below), whose sum is σ = 1365412608. Its totient is φ = 178801920.

The previous prime is 545213609. The next prime is 545213621. The reversal of 545213620 is 26312545.

545213620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545213621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81441 + ... + 87880.

It is an arithmetic number, because the mean of its divisors is an integer number (28446096).

Almost surely, 2^545213620 is an apocalyptic number.

It is an amenable number.

545213620 is an abundant number, since it is smaller than the sum of its proper divisors (820198988).

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

545213620 is a wasteful number, since it uses less digits than its factorization.

545213620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169360 (or 169358 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 545213620 is about 23349.8098493328. The cubic root of 545213620 is about 816.9376256710.

The spelling of 545213620 in words is "five hundred forty-five million, two hundred thirteen thousand, six hundred twenty".