2111604252 has 48 divisors (see below), whose sum is σ = 4985463840. Its totient is φ = 695549952.

The previous prime is 2111604211. The next prime is 2111604259. The reversal of 2111604252 is 2524061112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111604259) 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 15 ways as a sum of consecutive naturals, for example, 1243468 + ... + 1245164.

It is an arithmetic number, because the mean of its divisors is an integer number (103863830).

Almost surely, 2^2111604252 is an apocalyptic number.

It is an amenable number.

2111604252 is an abundant number, since it is smaller than the sum of its proper divisors (2873859588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111604252 is a wasteful number, since it uses less digits than its factorization.

2111604252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870 (or 2868 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2111604252 is about 45952.1952903232. The cubic root of 2111604252 is about 1282.9335896631.

Adding to 2111604252 its reverse (2524061112), we get a palindrome (4635665364).

The spelling of 2111604252 in words is "two billion, one hundred eleven million, six hundred four thousand, two hundred fifty-two".