55253270400 has 192 divisors, whose sum is σ = 182331544320. Its totient is φ = 14706595840.

The previous prime is 55253270389. The next prime is 55253270419. The reversal of 55253270400 is 407235255.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5399689 + ... + 5409911.

It is an arithmetic number, because the mean of its divisors is an integer number (949643460).

Almost surely, 2^55253270400 is an apocalyptic number.

55253270400 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 55253270400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91165772160).

55253270400 is an abundant number, since it is smaller than the sum of its proper divisors (127078273920).

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

55253270400 is a wasteful number, since it uses less digits than its factorization.

55253270400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10813 (or 10796 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 33.

The spelling of 55253270400 in words is "fifty-five billion, two hundred fifty-three million, two hundred seventy thousand, four hundred".