55054431320 has 64 divisors (see below), whose sum is σ = 149896111680. Its totient is φ = 17765462016.

The previous prime is 55054431253. The next prime is 55054431373. The reversal of 55054431320 is 2313445055.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5778269 + ... + 5787788.

It is an arithmetic number, because the mean of its divisors is an integer number (2342126745).

Almost surely, 2^55054431320 is an apocalyptic number.

It is an amenable number.

55054431320 is an abundant number, since it is smaller than the sum of its proper divisors (94841680360).

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

55054431320 is a wasteful number, since it uses less digits than its factorization.

55054431320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11566092 (or 11566088 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 55054431320 its reverse (2313445055), we get a palindrome (57367876375).

The spelling of 55054431320 in words is "fifty-five billion, fifty-four million, four hundred thirty-one thousand, three hundred twenty".