2209423626925 has 6 divisors (see below), whose sum is σ = 2739685297418. Its totient is φ = 1767538901520.

The previous prime is 2209423626919. The next prime is 2209423626941. The reversal of 2209423626925 is 5296263249022.

It can be written as a sum of positive squares in 3 ways, for example, as 218892043881 + 1990531583044 = 467859^2 + 1410862^2 .

It is not a de Polignac number, because 2209423626925 - 2⁷ = 2209423626797 is a prime.

It is a super-3 number, since 3×2209423626925³ (a number of 38 digits) contains 333 as substring.

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 (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44188472514 + ... + 44188472563.

Almost surely, 2^{2209423626925} is an apocalyptic number.

2209423626925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2209423626925 is a deficient number, since it is larger than the sum of its proper divisors (530261670493).

2209423626925 is an equidigital number, since it uses as much as digits as its factorization.

2209423626925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88376945087 (or 88376945082 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 2209423626925 in words is "two trillion, two hundred nine billion, four hundred twenty-three million, six hundred twenty-six thousand, nine hundred twenty-five".