55343315530421 has 4 divisors (see below), whose sum is σ = 55591491833472. Its totient is φ = 55095139227372.

The previous prime is 55343315530379. The next prime is 55343315530439. The reversal of 55343315530421 is 12403551334355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55343315530421 - 2⁶ = 55343315530357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55343315535421) 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, 124088151191 + ... + 124088151636.

It is an arithmetic number, because the mean of its divisors is an integer number (13897872958368).

Almost surely, 2^{55343315530421} is an apocalyptic number.

It is an amenable number.

55343315530421 is a deficient number, since it is larger than the sum of its proper divisors (248176303051).

55343315530421 is a wasteful number, since it uses less digits than its factorization.

55343315530421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248176303050.

The product of its (nonzero) digits is 1620000, while the sum is 44.

Adding to 55343315530421 its reverse (12403551334355), we get a palindrome (67746866864776).

The spelling of 55343315530421 in words is "fifty-five trillion, three hundred forty-three billion, three hundred fifteen million, five hundred thirty thousand, four hundred twenty-one".