14525534509 has 2 divisors, whose sum is σ = 14525534510.
Its totient is φ = 14525534508.
The previous prime is 14525534497. The next prime is 14525534579. The reversal of 14525534509 is 90543552541.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 14058844900 + 466689609 = 118570^2 + 21603^2
It is a cyclic number.
It is not a de Polignac number, because 14525534509 - 215 = 14525501741 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (14525534579) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7262767254 + 7262767255.
It is an arithmetic number, because the mean of its divisors is an integer number (7262767255).
Almost surely, 214525534509 is an apocalyptic number.
It is an amenable number.
14525534509 is a deficient number, since it is larger than the sum of its proper divisors (1).
14525534509 is an equidigital number, since it uses as much as digits as its factorization.
14525534509 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 540000, while the sum is 43.
The spelling of 14525534509 in words is "fourteen billion, five hundred twenty-five million, five hundred thirty-four thousand, five hundred nine".