2015551005 has 16 divisors (see below), whose sum is σ = 3472949760. Its totient is φ = 992271168.

The previous prime is 2015550949. The next prime is 2015551009. The reversal of 2015551005 is 5001555102.

2015551005 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2015551005 - 2¹¹ = 2015548957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015551009) 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, 5167885 + ... + 5168274.

It is an arithmetic number, because the mean of its divisors is an integer number (217059360).

Almost surely, 2^2015551005 is an apocalyptic number.

It is an amenable number.

2015551005 is a deficient number, since it is larger than the sum of its proper divisors (1457398755).

2015551005 is a wasteful number, since it uses less digits than its factorization.

2015551005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10336180.

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 2015551005 is about 44894.8884061426. Note that the first 3 decimals coincide. The cubic root of 2015551005 is about 1263.1781290404.

The spelling of 2015551005 in words is "two billion, fifteen million, five hundred fifty-one thousand, five".