14445500521 has 8 divisors (see below), whose sum is σ = 15197772744. Its totient is φ = 13712273280.

The previous prime is 14445500513. The next prime is 14445500527. The reversal of 14445500521 is 12500554441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2708161600 + 11737338921 = 52040^2 + 108339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14445500521 - 2³ = 14445500513 is a prime.

It is a super-2 number, since 2×14445500521² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14445500527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4759690 + ... + 4762723.

It is an arithmetic number, because the mean of its divisors is an integer number (1899721593).

Almost surely, 2^14445500521 is an apocalyptic number.

It is an amenable number.

14445500521 is a deficient number, since it is larger than the sum of its proper divisors (752272223).

14445500521 is an equidigital number, since it uses as much as digits as its factorization.

14445500521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9522491.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 14445500521 in words is "fourteen billion, four hundred forty-five million, five hundred thousand, five hundred twenty-one".