555642231 has 8 divisors (see below), whose sum is σ = 741223680. Its totient is φ = 370244472.

The previous prime is 555642221. The next prime is 555642247. The reversal of 555642231 is 132246555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 555642231 - 2⁶ = 555642167 is a prime.

It is a super-2 number, since 2×555642231² = 617476577741314722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 555642192 and 555642201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555642221) 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 7 ways as a sum of consecutive naturals, for example, 38701 + ... + 51078.

It is an arithmetic number, because the mean of its divisors is an integer number (92652960).

Almost surely, 2^555642231 is an apocalyptic number.

555642231 is a deficient number, since it is larger than the sum of its proper divisors (185581449).

555642231 is a wasteful number, since it uses less digits than its factorization.

555642231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91845.

The product of its digits is 36000, while the sum is 33.

The square root of 555642231 is about 23572.0646316779. The cubic root of 555642231 is about 822.1134412259.

Adding to 555642231 its reverse (132246555), we get a palindrome (687888786).

The spelling of 555642231 in words is "five hundred fifty-five million, six hundred forty-two thousand, two hundred thirty-one".