55323131504000 has 128 divisors (see below), whose sum is σ = 137551814824320. Its totient is φ = 22128499814400.

The previous prime is 55323131503999. The next prime is 55323131504051. The reversal of 55323131504000 is 40513132355.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 923762057 + ... + 923821943.

It is an arithmetic number, because the mean of its divisors is an integer number (1074623553315).

Almost surely, 2^{55323131504000} is an apocalyptic number.

55323131504000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55323131504000 is an abundant number, since it is smaller than the sum of its proper divisors (82228683320320).

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

55323131504000 is an equidigital number, since it uses as much as digits as its factorization.

55323131504000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117653 (or 117631 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 55323131504000 its reverse (40513132355), we get a palindrome (55363644636355).

The spelling of 55323131504000 in words is "fifty-five trillion, three hundred twenty-three billion, one hundred thirty-one million, five hundred four thousand".