2125222554 has 64 divisors (see below), whose sum is σ = 5317159680. Its totient is φ = 551301120.

The previous prime is 2125222549. The next prime is 2125222579. The reversal of 2125222554 is 4552225212.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 1402 + ... + 65210.

It is an arithmetic number, because the mean of its divisors is an integer number (83080620).

Almost surely, 2^2125222554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125222554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2658579840).

2125222554 is an abundant number, since it is smaller than the sum of its proper divisors (3191937126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2125222554 is a wasteful number, since it uses less digits than its factorization.

2125222554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63895.

The product of its digits is 16000, while the sum is 30.

The square root of 2125222554 is about 46100.1361603195. The cubic root of 2125222554 is about 1285.6856760371.

Adding to 2125222554 its reverse (4552225212), we get a palindrome (6677447766).

The spelling of 2125222554 in words is "two billion, one hundred twenty-five million, two hundred twenty-two thousand, five hundred fifty-four".