55324214521 has 3 divisors (see below), whose sum is σ = 55324449733. Its totient is φ = 55323979310.

The previous prime is 55324214489. The next prime is 55324214549. The reversal of 55324214521 is 12541242355.

It is a happy number.

The square root of 55324214521 is 235211.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 55324214521 - 2⁵ = 55324214489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55324217521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 117606 + ... + 352816.

Almost surely, 2^55324214521 is an apocalyptic number.

55324214521 is the 235211-st square number.

55324214521 is the 117606-th centered octagonal number.

It is an amenable number.

55324214521 is a deficient number, since it is larger than the sum of its proper divisors (235212).

55324214521 is an frugal number, since it uses more digits than its factorization.

55324214521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470422 (or 235211 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

Adding to 55324214521 its reverse (12541242355), we get a palindrome (67865456876).

The spelling of 55324214521 in words is "fifty-five billion, three hundred twenty-four million, two hundred fourteen thousand, five hundred twenty-one".