2784321025 has 6 divisors (see below), whose sum is σ = 3452558102. Its totient is φ = 2227456800.

The previous prime is 2784320989. The next prime is 2784321083. The reversal of 2784321025 is 5201234872.

It is a happy number.

2784321025 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 3 ways, for example, as 80425024 + 2703896001 = 8968^2 + 51999^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2784321025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55686396 + ... + 55686445.

Almost surely, 2^2784321025 is an apocalyptic number.

2784321025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2784321025 is a deficient number, since it is larger than the sum of its proper divisors (668237077).

2784321025 is a wasteful number, since it uses less digits than its factorization.

2784321025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111372851 (or 111372846 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 2784321025 is about 52766.6658507054. The cubic root of 2784321025 is about 1406.8240009984.

Adding to 2784321025 its reverse (5201234872), we get a palindrome (7985555897).

The spelling of 2784321025 in words is "two billion, seven hundred eighty-four million, three hundred twenty-one thousand, twenty-five".