54503431320 has 128 divisors (see below), whose sum is σ = 177704049600. Its totient is φ = 13293103104.

The previous prime is 54503431291. The next prime is 54503431391. The reversal of 54503431320 is 2313430545.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9774 + ... + 330306.

Almost surely, 2^54503431320 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 54503431320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88852024800).

54503431320 is an abundant number, since it is smaller than the sum of its proper divisors (123200618280).

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

54503431320 is a wasteful number, since it uses less digits than its factorization.

54503431320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320669 (or 320665 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 54503431320 its reverse (2313430545), we get a palindrome (56816861865).

The spelling of 54503431320 in words is "fifty-four billion, five hundred three million, four hundred thirty-one thousand, three hundred twenty".