14054521505 has 4 divisors (see below), whose sum is σ = 16865425812. Its totient is φ = 11243617200.

The previous prime is 14054521501. The next prime is 14054521541. The reversal of 14054521505 is 50512545041.

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 5696173729 + 8358347776 = 75473^2 + 91424^2 .

It is not a de Polignac number, because 14054521505 - 2² = 14054521501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14054521501) 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, 1405452146 + ... + 1405452155.

It is an arithmetic number, because the mean of its divisors is an integer number (4216356453).

Almost surely, 2^14054521505 is an apocalyptic number.

It is an amenable number.

14054521505 is a deficient number, since it is larger than the sum of its proper divisors (2810904307).

14054521505 is an equidigital number, since it uses as much as digits as its factorization.

14054521505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810904306.

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 14054521505 in words is "fourteen billion, fifty-four million, five hundred twenty-one thousand, five hundred five".