2125522405 has 8 divisors (see below), whose sum is σ = 2588696352. Its totient is φ = 1675038288.

The previous prime is 2125522367. The next prime is 2125522423. The reversal of 2125522405 is 5042255212.

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 2125522405 - 2¹⁵ = 2125489637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3172087 + ... + 3172756.

It is an arithmetic number, because the mean of its divisors is an integer number (323587044).

Almost surely, 2^2125522405 is an apocalyptic number.

It is an amenable number.

2125522405 is a deficient number, since it is larger than the sum of its proper divisors (463173947).

2125522405 is an equidigital number, since it uses as much as digits as its factorization.

2125522405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344915.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 2125522405 is about 46103.3882160520. The cubic root of 2125522405 is about 1285.7461396664.

Adding to 2125522405 its reverse (5042255212), we get a palindrome (7167777617).

It can be divided in two parts, 21255 and 22405, that added together give a triangular number (43660 = T₂₉₅).

The spelling of 2125522405 in words is "two billion, one hundred twenty-five million, five hundred twenty-two thousand, four hundred five".