555353343432421 has 8 divisors (see below), whose sum is σ = 573272259058688. Its totient is φ = 537434696034000.

The previous prime is 555353343432413. The next prime is 555353343432451. The reversal of 555353343432421 is 124234343353555.

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 555353343432421 - 2³ = 555353343432413 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 (555353343432451) 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, 62845050 + ... + 71135131.

It is an arithmetic number, because the mean of its divisors is an integer number (71659032382336).

Almost surely, 2^{555353343432421} is an apocalyptic number.

It is an amenable number.

555353343432421 is a deficient number, since it is larger than the sum of its proper divisors (17918915626267).

555353343432421 is a wasteful number, since it uses less digits than its factorization.

555353343432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134113923.

The product of its digits is 38880000, while the sum is 52.

Adding to 555353343432421 its reverse (124234343353555), we get a palindrome (679587686785976).

The spelling of 555353343432421 in words is "five hundred fifty-five trillion, three hundred fifty-three billion, three hundred forty-three million, four hundred thirty-two thousand, four hundred twenty-one".