2143506225055 has 16 divisors (see below), whose sum is σ = 2770156005120. Its totient is φ = 1582847520768.

The previous prime is 2143506225019. The next prime is 2143506225059. The reversal of 2143506225055 is 5505226053412.

It is a cyclic number.

It is not a de Polignac number, because 2143506225055 - 2³⁷ = 2006067271583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143506224999 and 2143506225017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143506225059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1654879 + ... + 2650591.

It is an arithmetic number, because the mean of its divisors is an integer number (173134750320).

Almost surely, 2^{2143506225055} is an apocalyptic number.

2143506225055 is a deficient number, since it is larger than the sum of its proper divisors (626649780065).

2143506225055 is a wasteful number, since it uses less digits than its factorization.

2143506225055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028850.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 2143506225055 in words is "two trillion, one hundred forty-three billion, five hundred six million, two hundred twenty-five thousand, fifty-five".