55127520000 has 720 divisors, whose sum is σ = 232941434880. Its totient is φ = 12593664000.

The previous prime is 55127519897. The next prime is 55127520013. The reversal of 55127520000 is 2572155.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (720).

It is a super-2 number, since 2×55127520000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 30239089 + ... + 30240911.

Almost surely, 2^55127520000 is an apocalyptic number.

55127520000 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 55127520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116470717440).

55127520000 is an abundant number, since it is smaller than the sum of its proper divisors (177813914880).

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

55127520000 is an equidigital number, since it uses as much as digits as its factorization.

55127520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875 (or 1840 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The spelling of 55127520000 in words is "fifty-five billion, one hundred twenty-seven million, five hundred twenty thousand".