1822605425 has 6 divisors (see below), whose sum is σ = 2260030758. Its totient is φ = 1458084320.

The previous prime is 1822605373. The next prime is 1822605461. The reversal of 1822605425 is 5245062281.

It can be written as a sum of positive squares in 3 ways, for example, as 34245904 + 1788359521 = 5852^2 + 42289^2 .

It is not a de Polignac number, because 1822605425 - 2²² = 1818411121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 36452084 + ... + 36452133.

It is an arithmetic number, because the mean of its divisors is an integer number (376671793).

Almost surely, 2^1822605425 is an apocalyptic number.

It is an amenable number.

1822605425 is a deficient number, since it is larger than the sum of its proper divisors (437425333).

1822605425 is an equidigital number, since it uses as much as digits as its factorization.

1822605425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72904227 (or 72904222 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 1822605425 is about 42691.9831467221. The cubic root of 1822605425 is about 1221.5114798924.

The spelling of 1822605425 in words is "one billion, eight hundred twenty-two million, six hundred five thousand, four hundred twenty-five".