2155054043 has 4 divisors (see below), whose sum is σ = 2268477960. Its totient is φ = 2041630128.

The previous prime is 2155054039. The next prime is 2155054093. The reversal of 2155054043 is 3404505512.

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

It is a cyclic number.

It is not a de Polignac number, because 2155054043 - 2² = 2155054039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2155053997 and 2155054015.

It is not an unprimeable number, because it can be changed into a prime (2155054093) 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, 56711930 + ... + 56711967.

It is an arithmetic number, because the mean of its divisors is an integer number (567119490).

Almost surely, 2^2155054043 is an apocalyptic number.

2155054043 is a deficient number, since it is larger than the sum of its proper divisors (113423917).

2155054043 is a wasteful number, since it uses less digits than its factorization.

2155054043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113423916.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2155054043 is about 46422.5596342985. The cubic root of 2155054043 is about 1291.6734172735.

Adding to 2155054043 its reverse (3404505512), we get a palindrome (5559559555).

The spelling of 2155054043 in words is "two billion, one hundred fifty-five million, fifty-four thousand, forty-three".