2164723325 has 12 divisors (see below), whose sum is σ = 2686182240. Its totient is φ = 1730536560.

The previous prime is 2164723247. The next prime is 2164723343. The reversal of 2164723325 is 5233274612.

It is not a de Polignac number, because 2164723325 - 2²⁰ = 2163674749 is a prime.

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, 5336 + ... + 66014.

It is an arithmetic number, because the mean of its divisors is an integer number (223848520).

Almost surely, 2^2164723325 is an apocalyptic number.

2164723325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2164723325 is a deficient number, since it is larger than the sum of its proper divisors (521458915).

2164723325 is a wasteful number, since it uses less digits than its factorization.

2164723325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62116 (or 62111 counting only the distinct ones).

The product of its digits is 60480, while the sum is 35.

The square root of 2164723325 is about 46526.5872915691. The cubic root of 2164723325 is about 1293.6023590924.

Adding to 2164723325 its reverse (5233274612), we get a palindrome (7397997937).

The spelling of 2164723325 in words is "two billion, one hundred sixty-four million, seven hundred twenty-three thousand, three hundred twenty-five".