2805791225 has 6 divisors (see below), whose sum is σ = 3479181150. Its totient is φ = 2244632960.

The previous prime is 2805791207. The next prime is 2805791371. The reversal of 2805791225 is 5221975082.

It can be written as a sum of positive squares in 3 ways, for example, as 158482921 + 2647308304 = 12589^2 + 51452^2 .

It is not a de Polignac number, because 2805791225 - 2¹² = 2805787129 is a prime.

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, 56115800 + ... + 56115849.

It is an arithmetic number, because the mean of its divisors is an integer number (579863525).

Almost surely, 2^2805791225 is an apocalyptic number.

2805791225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2805791225 is a deficient number, since it is larger than the sum of its proper divisors (673389925).

2805791225 is a wasteful number, since it uses less digits than its factorization.

2805791225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112231659 (or 112231654 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 2805791225 is about 52969.7198878756. The cubic root of 2805791225 is about 1410.4308032574.

The spelling of 2805791225 in words is "two billion, eight hundred five million, seven hundred ninety-one thousand, two hundred twenty-five".