55311551545000 has 40 divisors (see below), whose sum is σ = 129594965281650. Its totient is φ = 22124620616000.

The previous prime is 55311551544961. The next prime is 55311551545007. The reversal of 55311551545000 is 54515511355.

55311551545000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 4648844829924 + 50662706715076 = 2156118^2 + 7117774^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (55311551545007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5531150155 + ... + 5531160154.

Almost surely, 2^{55311551545000} is an apocalyptic number.

55311551545000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55311551545000 is an abundant number, since it is smaller than the sum of its proper divisors (74283413736650).

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

55311551545000 is a wasteful number, since it uses less digits than its factorization.

55311551545000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11062310335 (or 11062310316 counting only the distinct ones).

The product of its (nonzero) digits is 187500, while the sum is 40.

The spelling of 55311551545000 in words is "fifty-five trillion, three hundred eleven billion, five hundred fifty-one million, five hundred forty-five thousand".