55004431120 has 40 divisors (see below), whose sum is σ = 128029644864. Its totient is φ = 21976939392.

The previous prime is 55004431081. The next prime is 55004431147. The reversal of 55004431120 is 2113440055.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316614 + ... + 458533.

Almost surely, 2^55004431120 is an apocalyptic number.

It is an amenable number.

55004431120 is an abundant number, since it is smaller than the sum of its proper divisors (73025213744).

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

55004431120 is a wasteful number, since it uses less digits than its factorization.

55004431120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776047 (or 776041 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 55004431120 its reverse (2113440055), we get a palindrome (57117871175).

The spelling of 55004431120 in words is "fifty-five billion, four million, four hundred thirty-one thousand, one hundred twenty".