2025370209 has 4 divisors (see below), whose sum is σ = 2700493616. Its totient is φ = 1350246804.

The previous prime is 2025370187. The next prime is 2025370229. The reversal of 2025370209 is 9020735202.

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 2025370209 - 2¹¹ = 2025368161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2025370229) 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, 337561699 + ... + 337561704.

It is an arithmetic number, because the mean of its divisors is an integer number (675123404).

Almost surely, 2^2025370209 is an apocalyptic number.

It is an amenable number.

2025370209 is a deficient number, since it is larger than the sum of its proper divisors (675123407).

2025370209 is an equidigital number, since it uses as much as digits as its factorization.

2025370209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675123406.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2025370209 is about 45004.1132453468. The cubic root of 2025370209 is about 1265.2260911223.

The spelling of 2025370209 in words is "two billion, twenty-five million, three hundred seventy thousand, two hundred nine".