55303219881 has 48 divisors (see below), whose sum is σ = 101958240384. Its totient is φ = 29170917504.

The previous prime is 55303219847. The next prime is 55303219901. The reversal of 55303219881 is 18891230355.

55303219881 is a `hidden beast` number, since 5 + 530 + 3 + 21 + 98 + 8 + 1 = 666.

It is not a de Polignac number, because 55303219881 - 2¹¹ = 55303217833 is a prime.

It is a super-3 number, since 3×55303219881³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (55303219481) 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, 1228356 + ... + 1272581.

It is an arithmetic number, because the mean of its divisors is an integer number (2124130008).

Almost surely, 2^55303219881 is an apocalyptic number.

It is an amenable number.

55303219881 is a deficient number, since it is larger than the sum of its proper divisors (46655020503).

55303219881 is a wasteful number, since it uses less digits than its factorization.

55303219881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500972 (or 2500960 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 55303219881 in words is "fifty-five billion, three hundred three million, two hundred nineteen thousand, eight hundred eighty-one".