545260280 has 64 divisors (see below), whose sum is σ = 1254204000. Its totient is φ = 213295104.

The previous prime is 545260277. The next prime is 545260307. The reversal of 545260280 is 82062545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344531 + ... + 346109.

Almost surely, 2^545260280 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 545260280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627102000).

545260280 is an abundant number, since it is smaller than the sum of its proper divisors (708943720).

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

545260280 is a wasteful number, since it uses less digits than its factorization.

545260280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 1772 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 545260280 is about 23350.8089795621. The cubic root of 545260280 is about 816.9609298224.

The spelling of 545260280 in words is "five hundred forty-five million, two hundred sixty thousand, two hundred eighty".