2523209349 has 4 divisors (see below), whose sum is σ = 3364279136. Its totient is φ = 1682139564.

The previous prime is 2523209317. The next prime is 2523209369. The reversal of 2523209349 is 9439023252.

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 2523209349 - 2⁵ = 2523209317 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 (2523209369) 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, 420534889 + ... + 420534894.

It is an arithmetic number, because the mean of its divisors is an integer number (841069784).

Almost surely, 2^2523209349 is an apocalyptic number.

It is an amenable number.

2523209349 is a deficient number, since it is larger than the sum of its proper divisors (841069787).

2523209349 is an equidigital number, since it uses as much as digits as its factorization.

2523209349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841069786.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 2523209349 is about 50231.5573021582. The cubic root of 2523209349 is about 1361.3958687655.

The spelling of 2523209349 in words is "two billion, five hundred twenty-three million, two hundred nine thousand, three hundred forty-nine".