545204520 has 224 divisors, whose sum is σ = 2102757120. Its totient is φ = 124571520.

The previous prime is 545204503. The next prime is 545204521. The reversal of 545204520 is 25402545.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (545204521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 202785 + ... + 205455.

Almost surely, 2^545204520 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 545204520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051378560).

545204520 is an abundant number, since it is smaller than the sum of its proper divisors (1557552600).

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

545204520 is a wasteful number, since it uses less digits than its factorization.

545204520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707 (or 2688 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 545204520 is about 23349.6149861192. The cubic root of 545204520 is about 816.9330805572.

The spelling of 545204520 in words is "five hundred forty-five million, two hundred four thousand, five hundred twenty".