2785808025 has 576 divisors, whose sum is σ = 7599513600. Its totient is φ = 979776000.

The previous prime is 2785807993. The next prime is 2785808027. The reversal of 2785808025 is 5208085872.

It is not a de Polignac number, because 2785808025 - 2⁵ = 2785807993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2785808027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 89864760 + ... + 89864790.

It is an arithmetic number, because the mean of its divisors is an integer number (13193600).

Almost surely, 2^2785808025 is an apocalyptic number.

2785808025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2785808025 is an abundant number, since it is smaller than the sum of its proper divisors (4813705575).

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

2785808025 is a wasteful number, since it uses less digits than its factorization.

2785808025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 2785808025 is about 52780.7543049548. The cubic root of 2785808025 is about 1407.0744001647.

The spelling of 2785808025 in words is "two billion, seven hundred eighty-five million, eight hundred eight thousand, twenty-five".