2196440825 has 18 divisors (see below), whose sum is σ = 2735736174. Its totient is φ = 1749347520.

The previous prime is 2196440819. The next prime is 2196440837. The reversal of 2196440825 is 5280446912.

2196440825 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 42367081 + 2154073744 = 6509^2 + 46412^2 .

It is not a de Polignac number, because 2196440825 - 2⁶ = 2196440761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2001677 + ... + 2002773.

It is an arithmetic number, because the mean of its divisors is an integer number (151985343).

Almost surely, 2^2196440825 is an apocalyptic number.

2196440825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2196440825 is a deficient number, since it is larger than the sum of its proper divisors (539295349).

2196440825 is an equidigital number, since it uses as much as digits as its factorization.

2196440825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673 (or 1385 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 2196440825 is about 46866.2013075521. The cubic root of 2196440825 is about 1299.8896997147.

The spelling of 2196440825 in words is "two billion, one hundred ninety-six million, four hundred forty thousand, eight hundred twenty-five".