2115407555 has 8 divisors (see below), whose sum is σ = 2540178144. Its totient is φ = 1691200000.

The previous prime is 2115407533. The next prime is 2115407557. The reversal of 2115407555 is 5557045112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2115407555 - 2²⁰ = 2114358979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115407557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132446 + ... + 147555.

It is an arithmetic number, because the mean of its divisors is an integer number (317522268).

Almost surely, 2^2115407555 is an apocalyptic number.

2115407555 is a deficient number, since it is larger than the sum of its proper divisors (424770589).

2115407555 is a wasteful number, since it uses less digits than its factorization.

2115407555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281517.

The product of its (nonzero) digits is 35000, while the sum is 35.

The square root of 2115407555 is about 45993.5599296249. The cubic root of 2115407555 is about 1283.7033769946.

The spelling of 2115407555 in words is "two billion, one hundred fifteen million, four hundred seven thousand, five hundred fifty-five".