2125320265 has 8 divisors (see below), whose sum is σ = 2554869960. Its totient is φ = 1697265792.

The previous prime is 2125320257. The next prime is 2125320271. The reversal of 2125320265 is 5620235212.

It can be written as a sum of positive squares in 4 ways, for example, as 3888784 + 2121431481 = 1972^2 + 46059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2125320265 - 2³ = 2125320257 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 370674 + ... + 376363.

It is an arithmetic number, because the mean of its divisors is an integer number (319358745).

Almost surely, 2^2125320265 is an apocalyptic number.

It is an amenable number.

2125320265 is a deficient number, since it is larger than the sum of its proper divisors (429549695).

2125320265 is an equidigital number, since it uses as much as digits as its factorization.

2125320265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747611.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2125320265 is about 46101.1959172428. The cubic root of 2125320265 is about 1285.7053796532.

Adding to 2125320265 its reverse (5620235212), we get a palindrome (7745555477).

The spelling of 2125320265 in words is "two billion, one hundred twenty-five million, three hundred twenty thousand, two hundred sixty-five".