2135052520 has 16 divisors (see below), whose sum is σ = 4803868260. Its totient is φ = 854020992.

The previous prime is 2135052511. The next prime is 2135052523. The reversal of 2135052520 is 252505312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2134624804 + 427716 = 46202^2 + 654^2 .

It is not an unprimeable number, because it can be changed into a prime (2135052523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26688117 + ... + 26688196.

Almost surely, 2^2135052520 is an apocalyptic number.

2135052520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135052520 is an abundant number, since it is smaller than the sum of its proper divisors (2668815740).

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

2135052520 is a wasteful number, since it uses less digits than its factorization.

2135052520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53376324 (or 53376320 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2135052520 is about 46206.6285288161. The cubic root of 2135052520 is about 1287.6648900577.

Adding to 2135052520 its reverse (252505312), we get a palindrome (2387557832).

The spelling of 2135052520 in words is "two billion, one hundred thirty-five million, fifty-two thousand, five hundred twenty".