555042231 has 48 divisors (see below), whose sum is σ = 897661440. Its totient is φ = 328423680.

The previous prime is 555042157. The next prime is 555042247. The reversal of 555042231 is 132240555.

It is a happy number.

It is not a de Polignac number, because 555042231 - 2¹¹ = 555040183 is a prime.

It is a super-2 number, since 2×555042231² = 616143756386914722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 555042195 and 555042204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555042251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1252696 + ... + 1253138.

It is an arithmetic number, because the mean of its divisors is an integer number (18701280).

Almost surely, 2^555042231 is an apocalyptic number.

555042231 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

555042231 is a deficient number, since it is larger than the sum of its proper divisors (342619209).

555042231 is a wasteful number, since it uses less digits than its factorization.

555042231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 555042231 is about 23559.3342647877. The cubic root of 555042231 is about 821.8174199778.

Adding to 555042231 its reverse (132240555), we get a palindrome (687282786).

The spelling of 555042231 in words is "five hundred fifty-five million, forty-two thousand, two hundred thirty-one".