14520559993 has 4 divisors (see below), whose sum is σ = 14626549620. Its totient is φ = 14414570368.

The previous prime is 14520559967. The next prime is 14520560063. The reversal of 14520559993 is 39995502541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11918743929 + 2601816064 = 109173^2 + 51008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14520559993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14520559993.

It is not an unprimeable number, because it can be changed into a prime (14520559393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52994608 + ... + 52994881.

It is an arithmetic number, because the mean of its divisors is an integer number (3656637405).

Almost surely, 2^14520559993 is an apocalyptic number.

It is an amenable number.

14520559993 is a deficient number, since it is larger than the sum of its proper divisors (105989627).

14520559993 is a wasteful number, since it uses less digits than its factorization.

14520559993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105989626.

The product of its (nonzero) digits is 2187000, while the sum is 52.

The spelling of 14520559993 in words is "fourteen billion, five hundred twenty million, five hundred fifty-nine thousand, nine hundred ninety-three".