2055421050 has 48 divisors (see below), whose sum is σ = 5123928000. Its totient is φ = 545264640.

The previous prime is 2055421031. The next prime is 2055421099. The reversal of 2055421050 is 501245502.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2055421050.

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 23 ways as a sum of consecutive naturals, for example, 6550 + ... + 64449.

It is an arithmetic number, because the mean of its divisors is an integer number (106748500).

Almost surely, 2^2055421050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2055421050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2561964000).

2055421050 is an abundant number, since it is smaller than the sum of its proper divisors (3068506950).

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

2055421050 is a wasteful number, since it uses less digits than its factorization.

2055421050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71207 (or 71202 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 2055421050 is about 45336.7516480835. The cubic root of 2055421050 is about 1271.4528705355.

Adding to 2055421050 its reverse (501245502), we get a palindrome (2556666552).

The spelling of 2055421050 in words is "two billion, fifty-five million, four hundred twenty-one thousand, fifty".