2125522406 has 16 divisors (see below), whose sum is σ = 3655254816. Its totient is φ = 908062656.

The previous prime is 2125522367. The next prime is 2125522423. The reversal of 2125522406 is 6042255212.

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, 235031 + ... + 243906.

It is an arithmetic number, because the mean of its divisors is an integer number (228453426).

Almost surely, 2^2125522406 is an apocalyptic number.

2125522406 is a deficient number, since it is larger than the sum of its proper divisors (1529732410).

2125522406 is a wasteful number, since it uses less digits than its factorization.

2125522406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479263.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2125522406 is about 46103.3882268972. The cubic root of 2125522406 is about 1285.7461398681.

Adding to 2125522406 its reverse (6042255212), we get a palindrome (8167777618).

The spelling of 2125522406 in words is "two billion, one hundred twenty-five million, five hundred twenty-two thousand, four hundred six".