2015540055 has 12 divisors (see below), whose sum is σ = 3493602840. Its totient is φ = 1074954672.

The previous prime is 2015540041. The next prime is 2015540063. The reversal of 2015540055 is 5500455102.

2015540055 is a `hidden beast` number, since 201 + 5 + 5 + 400 + 55 = 666.

2015540055 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 2015540055 - 2⁹ = 2015539543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22394845 + ... + 22394934.

It is an arithmetic number, because the mean of its divisors is an integer number (291133570).

Almost surely, 2^2015540055 is an apocalyptic number.

2015540055 is a deficient number, since it is larger than the sum of its proper divisors (1478062785).

2015540055 is a wasteful number, since it uses less digits than its factorization.

2015540055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44789790 (or 44789787 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 2015540055 is about 44894.7664544544. The cubic root of 2015540055 is about 1263.1758415227.

Adding to 2015540055 its reverse (5500455102), we get a palindrome (7515995157).

The spelling of 2015540055 in words is "two billion, fifteen million, five hundred forty thousand, fifty-five".