555424231 has 4 divisors (see below), whose sum is σ = 561150352. Its totient is φ = 549698112.

The previous prime is 555424189. The next prime is 555424237. The reversal of 555424231 is 132424555.

555424231 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.

It is a cyclic number.

It is not a de Polignac number, because 555424231 - 2⁹ = 555423719 is a prime.

It is a super-2 number, since 2×555424231² = 616992152763882722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 555424193 and 555424202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555424237) 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, 2862915 + ... + 2863108.

It is an arithmetic number, because the mean of its divisors is an integer number (140287588).

Almost surely, 2^555424231 is an apocalyptic number.

555424231 is a deficient number, since it is larger than the sum of its proper divisors (5726121).

555424231 is an equidigital number, since it uses as much as digits as its factorization.

555424231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726120.

The product of its digits is 24000, while the sum is 31.

The square root of 555424231 is about 23567.4400603884. The cubic root of 555424231 is about 822.0059114980.

Adding to 555424231 its reverse (132424555), we get a palindrome (687848786).

The spelling of 555424231 in words is "five hundred fifty-five million, four hundred twenty-four thousand, two hundred thirty-one".