2290908825 has 90 divisors (see below), whose sum is σ = 4356043802. Its totient is φ = 1190246400.

The previous prime is 2290908803. The next prime is 2290908871. The reversal of 2290908825 is 5288090922.

It can be written as a sum of positive squares in 9 ways, for example, as 1969495641 + 321413184 = 44379^2 + 17928^2 .

It is not a de Polignac number, because 2290908825 - 2¹¹ = 2290906777 is a prime.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 3403689 + ... + 3404361.

Almost surely, 2^2290908825 is an apocalyptic number.

2290908825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2290908825 is a deficient number, since it is larger than the sum of its proper divisors (2065134977).

2290908825 is an equidigital number, since it uses as much as digits as its factorization.

2290908825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 2290908825 is about 47863.4393352588. The cubic root of 2290908825 is about 1318.2646358913.

The spelling of 2290908825 in words is "two billion, two hundred ninety million, nine hundred eight thousand, eight hundred twenty-five".