2788748225 has 12 divisors (see below), whose sum is σ = 3458901756. Its totient is φ = 2230447680.

The previous prime is 2788748203. The next prime is 2788748231. The reversal of 2788748225 is 5228478872.

2788748225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 199261456 + 2589486769 = 14116^2 + 50887^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2788748225 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112019 + ... + 134631.

It is an arithmetic number, because the mean of its divisors is an integer number (288241813).

Almost surely, 2^2788748225 is an apocalyptic number.

2788748225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2788748225 is a deficient number, since it is larger than the sum of its proper divisors (670153531).

2788748225 is a wasteful number, since it uses less digits than its factorization.

2788748225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27556 (or 27551 counting only the distinct ones).

The product of its digits is 4014080, while the sum is 53.

The square root of 2788748225 is about 52808.5999151653. The cubic root of 2788748225 is about 1407.5692446901.

The spelling of 2788748225 in words is "two billion, seven hundred eighty-eight million, seven hundred forty-eight thousand, two hundred twenty-five".