555042331 has 8 divisors (see below), whose sum is σ = 564656400. Its totient is φ = 545498112.

The previous prime is 555042329. The next prime is 555042373. The reversal of 555042331 is 133240555.

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 555042331 - 2¹ = 555042329 is a prime.

It is a super-2 number, since 2×555042331² = 616143978403827122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 555042331.

It is not an unprimeable number, because it can be changed into a prime (555042311) 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, 1306 + ... + 33343.

It is an arithmetic number, because the mean of its divisors is an integer number (70582050).

Almost surely, 2^555042331 is an apocalyptic number.

555042331 is a deficient number, since it is larger than the sum of its proper divisors (9614069).

555042331 is a wasteful number, since it uses less digits than its factorization.

555042331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34925.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 555042331 is about 23559.3363870887. The cubic root of 555042331 is about 821.8174693324.

Adding to 555042331 its reverse (133240555), we get a palindrome (688282886).

The spelling of 555042331 in words is "five hundred fifty-five million, forty-two thousand, three hundred thirty-one".