2111525005 has 16 divisors (see below), whose sum is σ = 2783157120. Its totient is φ = 1530733248.

The previous prime is 2111524999. The next prime is 2111525023. The reversal of 2111525005 is 5005251112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2111525005 - 2¹¹ = 2111522957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481002 + ... + 485371.

It is an arithmetic number, because the mean of its divisors is an integer number (173947320).

Almost surely, 2^2111525005 is an apocalyptic number.

It is an amenable number.

2111525005 is a deficient number, since it is larger than the sum of its proper divisors (671632115).

2111525005 is a wasteful number, since it uses less digits than its factorization.

2111525005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966420.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 2111525005 is about 45951.3330056920. Note that the first 3 decimals coincide. The cubic root of 2111525005 is about 1282.9175402685.

Adding to 2111525005 its reverse (5005251112), we get a palindrome (7116776117).

The spelling of 2111525005 in words is "two billion, one hundred eleven million, five hundred twenty-five thousand, five".