55533433554 has 48 divisors (see below), whose sum is σ = 127655892000. Its totient is φ = 17387291520.

The previous prime is 55533433531. The next prime is 55533433597. The reversal of 55533433554 is 45533433555.

It is a happy number.

55533433554 is a `hidden beast` number, since 5 + 5 + 53 + 3 + 43 + 3 + 554 = 666.

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 23 ways as a sum of consecutive naturals, for example, 29152 + ... + 334539.

It is an arithmetic number, because the mean of its divisors is an integer number (2659497750).

Almost surely, 2^55533433554 is an apocalyptic number.

55533433554 is an abundant number, since it is smaller than the sum of its proper divisors (72122458446).

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

55533433554 is a wasteful number, since it uses less digits than its factorization.

55533433554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364215 (or 364212 counting only the distinct ones).

The product of its digits is 4050000, while the sum is 45.

Subtracting from 55533433554 its reverse (45533433555), we obtain a palindrome (9999999999).

The spelling of 55533433554 in words is "fifty-five billion, five hundred thirty-three million, four hundred thirty-three thousand, five hundred fifty-four".