545023880 has 32 divisors (see below), whose sum is σ = 1226971800. Its totient is φ = 217890816.

The previous prime is 545023879. The next prime is 545023901. The reversal of 545023880 is 88320545.

It can be written as a sum of positive squares in 4 ways, for example, as 390220516 + 154803364 = 19754^2 + 12442^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 545023880.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 131114 + ... + 135206.

Almost surely, 2^545023880 is an apocalyptic number.

It is an amenable number.

545023880 is an abundant number, since it is smaller than the sum of its proper divisors (681947920).

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

545023880 is a wasteful number, since it uses less digits than its factorization.

545023880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433 (or 7429 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 545023880 is about 23345.7465076617. The cubic root of 545023880 is about 816.8428470838.

The spelling of 545023880 in words is "five hundred forty-five million, twenty-three thousand, eight hundred eighty".