55306803331 has 16 divisors (see below), whose sum is σ = 60461650368. Its totient is φ = 50282064000.

The previous prime is 55306803319. The next prime is 55306803337. The reversal of 55306803331 is 13330860355.

It is a cyclic number.

It is not a de Polignac number, because 55306803331 - 2⁷ = 55306803203 is a prime.

It is a super-2 number, since 2×55306803331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55306803337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890181 + ... + 950281.

It is an arithmetic number, because the mean of its divisors is an integer number (3778853148).

Almost surely, 2^55306803331 is an apocalyptic number.

55306803331 is a deficient number, since it is larger than the sum of its proper divisors (5154847037).

55306803331 is a wasteful number, since it uses less digits than its factorization.

55306803331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61182.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 55306803331 in words is "fifty-five billion, three hundred six million, eight hundred three thousand, three hundred thirty-one".