2025419909 has 4 divisors (see below), whose sum is σ = 2059749120. Its totient is φ = 1991090700.

The previous prime is 2025419863. The next prime is 2025419917. The reversal of 2025419909 is 9099145202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2025419909 - 2²⁰ = 2024371333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025419959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17164517 + ... + 17164634.

It is an arithmetic number, because the mean of its divisors is an integer number (514937280).

Almost surely, 2^2025419909 is an apocalyptic number.

It is an amenable number.

2025419909 is a deficient number, since it is larger than the sum of its proper divisors (34329211).

2025419909 is an equidigital number, since it uses as much as digits as its factorization.

2025419909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34329210.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 2025419909 is about 45004.6654137102. The cubic root of 2025419909 is about 1265.2364400488.

The spelling of 2025419909 in words is "two billion, twenty-five million, four hundred nineteen thousand, nine hundred nine".