55355381334 has 48 divisors (see below), whose sum is σ = 138536470800. Its totient is φ = 15787630080.

The previous prime is 55355381327. The next prime is 55355381359. The reversal of 55355381334 is 43318355355.

55355381334 is a `hidden beast` number, since 5 + 53 + 553 + 8 + 13 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 55355381334.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8219359 + ... + 8226090.

It is an arithmetic number, because the mean of its divisors is an integer number (2886176475).

Almost surely, 2^55355381334 is an apocalyptic number.

55355381334 is an abundant number, since it is smaller than the sum of its proper divisors (83181089466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55355381334 is a wasteful number, since it uses less digits than its factorization.

55355381334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16445485 (or 16445482 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 45.

The spelling of 55355381334 in words is "fifty-five billion, three hundred fifty-five million, three hundred eighty-one thousand, three hundred thirty-four".