2523890009 has 2 divisors, whose sum is σ = 2523890010. Its totient is φ = 2523890008.

The previous prime is 2523890003. The next prime is 2523890021. The reversal of 2523890009 is 9000983252.

2523890009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1913800009 + 610090000 = 43747^2 + 24700^2 .

It is a cyclic number.

It is not a de Polignac number, because 2523890009 - 2⁴ = 2523889993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2523890003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261945004 + 1261945005.

It is an arithmetic number, because the mean of its divisors is an integer number (1261945005).

Almost surely, 2^2523890009 is an apocalyptic number.

It is an amenable number.

2523890009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523890009 is an equidigital number, since it uses as much as digits as its factorization.

2523890009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 2523890009 is about 50238.3320682524. The cubic root of 2523890009 is about 1361.5182743044.

The spelling of 2523890009 in words is "two billion, five hundred twenty-three million, eight hundred ninety thousand, nine".