555116331 has 64 divisors (see below), whose sum is σ = 984268800. Its totient is φ = 269568000.

The previous prime is 555116323. The next prime is 555116371. The reversal of 555116331 is 133611555.

It is not a de Polignac number, because 555116331 - 2³ = 555116323 is a prime.

It is a super-2 number, since 2×555116331² = 616308281885803122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (555116371) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 345931 + ... + 347531.

It is an arithmetic number, because the mean of its divisors is an integer number (15379200).

Almost surely, 2^555116331 is an apocalyptic number.

555116331 is a deficient number, since it is larger than the sum of its proper divisors (429152469).

555116331 is a wasteful number, since it uses less digits than its factorization.

555116331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720.

The product of its digits is 6750, while the sum is 30.

The square root of 555116331 is about 23560.9068373864. The cubic root of 555116331 is about 821.8539901447.

Adding to 555116331 its reverse (133611555), we get a palindrome (688727886).

It can be divided in two parts, 555 and 116331, that added together give a triangular number (116886 = T₄₈₃).

The spelling of 555116331 in words is "five hundred fifty-five million, one hundred sixteen thousand, three hundred thirty-one".