2055520385 has 8 divisors (see below), whose sum is σ = 2533290216. Its totient is φ = 1599972480.

The previous prime is 2055520351. The next prime is 2055520399. The reversal of 2055520385 is 5830255502.

It can be written as a sum of positive squares in 4 ways, for example, as 416323216 + 1639197169 = 20404^2 + 40487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2055520385 - 2⁶ = 2055520321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5555276 + ... + 5555645.

It is an arithmetic number, because the mean of its divisors is an integer number (316661277).

Almost surely, 2^2055520385 is an apocalyptic number.

It is an amenable number.

2055520385 is a deficient number, since it is larger than the sum of its proper divisors (477769831).

2055520385 is a wasteful number, since it uses less digits than its factorization.

2055520385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110963.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 2055520385 is about 45337.8471588583. The cubic root of 2055520385 is about 1271.4733525898.

Adding to 2055520385 its reverse (5830255502), we get a palindrome (7885775887).

The spelling of 2055520385 in words is "two billion, fifty-five million, five hundred twenty thousand, three hundred eighty-five".