55020311313200 has 60 divisors (see below), whose sum is σ = 137933528297808. Its totient is φ = 21051249542400.

The previous prime is 55020311313169. The next prime is 55020311313211. The reversal of 55020311313200 is 231311302055.

It is a self number, because there is not a number n which added to its sum of digits gives 55020311313200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2990225111 + ... + 2990243510.

Almost surely, 2^{55020311313200} is an apocalyptic number.

55020311313200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55020311313200 is an abundant number, since it is smaller than the sum of its proper divisors (82913216984608).

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

55020311313200 is a wasteful number, since it uses less digits than its factorization.

55020311313200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5980468662 (or 5980468651 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 55020311313200 its reverse (231311302055), we get a palindrome (55251622615255).

The spelling of 55020311313200 in words is "fifty-five trillion, twenty billion, three hundred eleven million, three hundred thirteen thousand, two hundred".