2525282809 has 4 divisors (see below), whose sum is σ = 2886037504. Its totient is φ = 2164528116.

The previous prime is 2525282803. The next prime is 2525282821. The reversal of 2525282809 is 9082825252.

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 a cyclic number.

It is not a de Polignac number, because 2525282809 - 2⁷ = 2525282681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2525282803) 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, 180377337 + ... + 180377350.

It is an arithmetic number, because the mean of its divisors is an integer number (721509376).

Almost surely, 2^2525282809 is an apocalyptic number.

It is an amenable number.

2525282809 is a deficient number, since it is larger than the sum of its proper divisors (360754695).

2525282809 is an equidigital number, since it uses as much as digits as its factorization.

2525282809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360754694.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 2525282809 is about 50252.1920815401. The cubic root of 2525282809 is about 1361.7686779704.

The spelling of 2525282809 in words is "two billion, five hundred twenty-five million, two hundred eighty-two thousand, eight hundred nine".