2155054203233 has 4 divisors (see below), whose sum is σ = 2195715603348. Its totient is φ = 2114392803120.

The previous prime is 2155054203217. The next prime is 2155054203241. The reversal of 2155054203233 is 3323024505512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1261023440209 + 894030763024 = 1122953^2 + 945532^2 .

It is a cyclic number.

It is not a de Polignac number, because 2155054203233 - 2⁴ = 2155054203217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2155054203193 and 2155054203202.

It is not an unprimeable number, because it can be changed into a prime (2155054203283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20330699978 + ... + 20330700083.

It is an arithmetic number, because the mean of its divisors is an integer number (548928900837).

Almost surely, 2^{2155054203233} is an apocalyptic number.

It is an amenable number.

2155054203233 is a deficient number, since it is larger than the sum of its proper divisors (40661400115).

2155054203233 is an equidigital number, since it uses as much as digits as its factorization.

2155054203233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40661400114.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 2155054203233 its reverse (3323024505512), we get a palindrome (5478078708745).

The spelling of 2155054203233 in words is "two trillion, one hundred fifty-five billion, fifty-four million, two hundred three thousand, two hundred thirty-three".