2155115033 has 4 divisors (see below), whose sum is σ = 2268542160. Its totient is φ = 2041687908.

The previous prime is 2155115029. The next prime is 2155115051. The reversal of 2155115033 is 3305115512.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2155115033 - 2² = 2155115029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2155114993 and 2155115011.

It is not an unprimeable number, because it can be changed into a prime (2155115063) 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, 56713535 + ... + 56713572.

It is an arithmetic number, because the mean of its divisors is an integer number (567135540).

Almost surely, 2^2155115033 is an apocalyptic number.

It is an amenable number.

2155115033 is a deficient number, since it is larger than the sum of its proper divisors (113427127).

2155115033 is a wasteful number, since it uses less digits than its factorization.

2155115033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113427126.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 2155115033 is about 46423.2165300941. The cubic root of 2155115033 is about 1291.6856023382.

The spelling of 2155115033 in words is "two billion, one hundred fifty-five million, one hundred fifteen thousand, thirty-three".