2555021201 has 4 divisors (see below), whose sum is σ = 2559449892. Its totient is φ = 2550592512.

The previous prime is 2555021177. The next prime is 2555021213. The reversal of 2555021201 is 1021205552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2099838976 + 455182225 = 45824^2 + 21335^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555021201 - 2¹⁰ = 2555020177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2555021281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2213480 + ... + 2214633.

It is an arithmetic number, because the mean of its divisors is an integer number (639862473).

Almost surely, 2^2555021201 is an apocalyptic number.

It is an amenable number.

2555021201 is a deficient number, since it is larger than the sum of its proper divisors (4428691).

2555021201 is an equidigital number, since it uses as much as digits as its factorization.

2555021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428690.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2555021201 is about 50547.2175396431. The cubic root of 2555021201 is about 1367.0933457030.

Adding to 2555021201 its reverse (1021205552), we get a palindrome (3576226753).

The spelling of 2555021201 in words is "two billion, five hundred fifty-five million, twenty-one thousand, two hundred one".