2129564325 has 48 divisors (see below), whose sum is σ = 4050661376. Its totient is φ = 967032000.

The previous prime is 2129564323. The next prime is 2129564357. The reversal of 2129564325 is 5234659212.

It is not a de Polignac number, because 2129564325 - 2¹ = 2129564323 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129564323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65844 + ... + 92706.

Almost surely, 2^2129564325 is an apocalyptic number.

2129564325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2129564325 is a deficient number, since it is larger than the sum of its proper divisors (1921097051).

2129564325 is a wasteful number, since it uses less digits than its factorization.

2129564325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27034 (or 27029 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 2129564325 is about 46147.2027863011. The cubic root of 2129564325 is about 1286.5606205908.

The spelling of 2129564325 in words is "two billion, one hundred twenty-nine million, five hundred sixty-four thousand, three hundred twenty-five".