55403030318 has 16 divisors (see below), whose sum is σ = 83480239440. Its totient is φ = 27576338496.

The previous prime is 55403030303. The next prime is 55403030357. The reversal of 55403030318 is 81303030455.

It is a super-2 number, since 2×55403030318² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2555468 + ... + 2577056.

It is an arithmetic number, because the mean of its divisors is an integer number (5217514965).

Almost surely, 2^55403030318 is an apocalyptic number.

55403030318 is a deficient number, since it is larger than the sum of its proper divisors (28077209122).

55403030318 is a wasteful number, since it uses less digits than its factorization.

55403030318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27331.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 55403030318 in words is "fifty-five billion, four hundred three million, thirty thousand, three hundred eighteen".