2012015555 has 16 divisors (see below), whose sum is σ = 2635365888. Its totient is φ = 1462476000.

The previous prime is 2012015549. The next prime is 2012015557. The reversal of 2012015555 is 5555102102.

It is not a de Polignac number, because 2012015555 - 2⁴ = 2012015539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012015557) 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, 101510 + ... + 119700.

It is an arithmetic number, because the mean of its divisors is an integer number (164710368).

Almost surely, 2^2012015555 is an apocalyptic number.

2012015555 is a deficient number, since it is larger than the sum of its proper divisors (623350333).

2012015555 is a wasteful number, since it uses less digits than its factorization.

2012015555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20218.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 2012015555 is about 44855.4963744690. The cubic root of 2012015555 is about 1262.4391223790.

Adding to 2012015555 its reverse (5555102102), we get a palindrome (7567117657).

The spelling of 2012015555 in words is "two billion, twelve million, fifteen thousand, five hundred fifty-five".