2805025525 has 12 divisors (see below), whose sum is σ = 3535253764. Its totient is φ = 2207232000.

The previous prime is 2805025519. The next prime is 2805025547. The reversal of 2805025525 is 5255205082.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 13593969 + 2791431556 = 3687^2 + 52834^2 .

It is not a de Polignac number, because 2805025525 - 2⁷ = 2805025397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 918156 + ... + 921205.

Almost surely, 2^2805025525 is an apocalyptic number.

2805025525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2805025525 is a deficient number, since it is larger than the sum of its proper divisors (730228239).

2805025525 is a wasteful number, since it uses less digits than its factorization.

2805025525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839432 (or 1839427 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The square root of 2805025525 is about 52962.4916804336. The cubic root of 2805025525 is about 1410.3024894670.

The spelling of 2805025525 in words is "two billion, eight hundred five million, twenty-five thousand, five hundred twenty-five".