2115240555 has 16 divisors (see below), whose sum is σ = 3583466784. Its totient is φ = 1061767680.

The previous prime is 2115240527. The next prime is 2115240557. The reversal of 2115240555 is 5550425112.

It is not a de Polignac number, because 2115240555 - 2¹¹ = 2115238507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2115240557) 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, 4147276 + ... + 4147785.

It is an arithmetic number, because the mean of its divisors is an integer number (223966674).

Almost surely, 2^2115240555 is an apocalyptic number.

2115240555 is a deficient number, since it is larger than the sum of its proper divisors (1468226229).

2115240555 is a wasteful number, since it uses less digits than its factorization.

2115240555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8295086.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 2115240555 is about 45991.7444222330. The cubic root of 2115240555 is about 1283.6695956231.

Adding to 2115240555 its reverse (5550425112), we get a palindrome (7665665667).

The spelling of 2115240555 in words is "two billion, one hundred fifteen million, two hundred forty thousand, five hundred fifty-five".