55511034432 has 224 divisors, whose sum is σ = 170319801600. Its totient is φ = 15628664832.

The previous prime is 55511034421. The next prime is 55511034463. The reversal of 55511034432 is 23443011555.

It is a tau number, because it is divible by the number of its divisors (224).

It is a junction number, because it is equal to n+sod(n) for n = 55511034393 and 55511034402.

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 31 ways as a sum of consecutive naturals, for example, 46530028 + ... + 46531220.

Almost surely, 2^55511034432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55511034432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85159900800).

55511034432 is an abundant number, since it is smaller than the sum of its proper divisors (114808767168).

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

55511034432 is a wasteful number, since it uses less digits than its factorization.

55511034432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 55511034432 its reverse (23443011555), we get a palindrome (78954045987).

The spelling of 55511034432 in words is "fifty-five billion, five hundred eleven million, thirty-four thousand, four hundred thirty-two".