2135523325 has 12 divisors (see below), whose sum is σ = 2851745428. Its totient is φ = 1577001600.

The previous prime is 2135523317. The next prime is 2135523353. The reversal of 2135523325 is 5233255312.

It can be written as a sum of positive squares in 6 ways, for example, as 826965049 + 1308558276 = 28757^2 + 36174^2 .

It is not a de Polignac number, because 2135523325 - 2³ = 2135523317 is a prime.

It is a Duffinian number.

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, 3285096 + ... + 3285745.

Almost surely, 2^2135523325 is an apocalyptic number.

2135523325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2135523325 is a deficient number, since it is larger than the sum of its proper divisors (716222103).

2135523325 is a wasteful number, since it uses less digits than its factorization.

2135523325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6570864 (or 6570859 counting only the distinct ones).

The product of its digits is 27000, while the sum is 31.

The square root of 2135523325 is about 46211.7228092613. The cubic root of 2135523325 is about 1287.7595316816.

Adding to 2135523325 its reverse (5233255312), we get a palindrome (7368778637).

The spelling of 2135523325 in words is "two billion, one hundred thirty-five million, five hundred twenty-three thousand, three hundred twenty-five".