55253440000000 has 624 divisors, whose sum is σ = 151920263817504. Its totient is φ = 20078080000000.

The previous prime is 55253439999973. The next prime is 55253440000067. The reversal of 55253440000000 is 4435255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38719999287 + ... + 38720000713.

It is an arithmetic number, because the mean of its divisors is an integer number (243461961246).

Almost surely, 2^{55253440000000} is an apocalyptic number.

55253440000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55253440000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75960131908752).

55253440000000 is an abundant number, since it is smaller than the sum of its proper divisors (96666823817504).

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

55253440000000 is an frugal number, since it uses more digits than its factorization.

55253440000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 55253440000000 its reverse (4435255), we get a palindrome (55253444435255).

The spelling of 55253440000000 in words is "fifty-five trillion, two hundred fifty-three billion, four hundred forty million", and thus it is an aban number.