55351324431521 has 8 divisors (see below), whose sum is σ = 58266563191200. Its totient is φ = 52436286787680.

The previous prime is 55351324431493. The next prime is 55351324431539. The reversal of 55351324431521 is 12513442315355.

55351324431521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55351324431521 - 2¹⁴ = 55351324415137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55351324431421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49713860 + ... + 50815061.

It is an arithmetic number, because the mean of its divisors is an integer number (7283320398900).

Almost surely, 2^{55351324431521} is an apocalyptic number.

It is an amenable number.

55351324431521 is a deficient number, since it is larger than the sum of its proper divisors (2915238759679).

55351324431521 is a wasteful number, since it uses less digits than its factorization.

55351324431521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100557919.

The product of its digits is 1080000, while the sum is 44.

Adding to 55351324431521 its reverse (12513442315355), we get a palindrome (67864766746876).

The spelling of 55351324431521 in words is "fifty-five trillion, three hundred fifty-one billion, three hundred twenty-four million, four hundred thirty-one thousand, five hundred twenty-one".