545331520 has 28 divisors (see below), whose sum is σ = 1298571444. Its totient is φ = 218132480.

The previous prime is 545331511. The next prime is 545331533. The reversal of 545331520 is 25133545.

It can be written as a sum of positive squares in 2 ways, for example, as 393943104 + 151388416 = 19848^2 + 12304^2 .

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 3 ways as a sum of consecutive naturals, for example, 851761 + ... + 852400.

Almost surely, 2^545331520 is an apocalyptic number.

It is an amenable number.

545331520 is an abundant number, since it is smaller than the sum of its proper divisors (753239924).

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

545331520 is a wasteful number, since it uses less digits than its factorization.

545331520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704178 (or 1704168 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 545331520 is about 23352.3343586889. The cubic root of 545331520 is about 816.9965077927.

The spelling of 545331520 in words is "five hundred forty-five million, three hundred thirty-one thousand, five hundred twenty".