2055221252 has 12 divisors (see below), whose sum is σ = 4110442560. Its totient is φ = 880809096.

The previous prime is 2055221243. The next prime is 2055221293. The reversal of 2055221252 is 2521225502.

2055221252 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36700352 + ... + 36700407.

It is an arithmetic number, because the mean of its divisors is an integer number (342536880).

Almost surely, 2^2055221252 is an apocalyptic number.

It is an amenable number.

2055221252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2055221252 is a wasteful number, since it uses less digits than its factorization.

2055221252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73400770 (or 73400768 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2055221252 is about 45334.5481062732. The cubic root of 2055221252 is about 1271.4116718442.

Adding to 2055221252 its reverse (2521225502), we get a palindrome (4576446754).

The spelling of 2055221252 in words is "two billion, fifty-five million, two hundred twenty-one thousand, two hundred fifty-two".