2780055528 has 64 divisors (see below), whose sum is σ = 7322649600. Its totient is φ = 877106880.

The previous prime is 2780055469. The next prime is 2780055533. The reversal of 2780055528 is 8255500872.

2780055528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2780055528.

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, 674193 + ... + 678303.

It is an arithmetic number, because the mean of its divisors is an integer number (114416400).

Almost surely, 2^2780055528 is an apocalyptic number.

It is an amenable number.

2780055528 is an abundant number, since it is smaller than the sum of its proper divisors (4542594072).

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

2780055528 is a wasteful number, since it uses less digits than its factorization.

2780055528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622 (or 5618 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 42.

The square root of 2780055528 is about 52726.2318775010. The cubic root of 2780055528 is about 1406.1052296518.

The spelling of 2780055528 in words is "two billion, seven hundred eighty million, fifty-five thousand, five hundred twenty-eight".