14855521 has 4 divisors (see below), whose sum is σ = 14894100. Its totient is φ = 14816944.

The previous prime is 14855483. The next prime is 14855527. The reversal of 14855521 is 12555841.

14855521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12555841 = 229 ⋅54829.

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 12496225 = 1536^2 + 3535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14855521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14855527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18706 + ... + 19483.

It is an arithmetic number, because the mean of its divisors is an integer number (3723525).

Almost surely, 2^14855521 is an apocalyptic number.

It is an amenable number.

14855521 is a deficient number, since it is larger than the sum of its proper divisors (38579).

14855521 is an equidigital number, since it uses as much as digits as its factorization.

14855521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38578.

The product of its digits is 8000, while the sum is 31.

The square root of 14855521 is about 3854.2860558085. The cubic root of 14855521 is about 245.8268385018.

It can be divided in two parts, 14855 and 521, that added together give a square (15376 = 124²).

The spelling of 14855521 in words is "fourteen million, eight hundred fifty-five thousand, five hundred twenty-one".