255620201 has 4 divisors (see below), whose sum is σ = 256944852. Its totient is φ = 254295552.

The previous prime is 255620191. The next prime is 255620213. The reversal of 255620201 is 102026552.

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 33640000 + 221980201 = 5800^2 + 14899^2 .

It is a cyclic number.

It is not a de Polignac number, because 255620201 - 2²² = 251425897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255620401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662036 + ... + 662421.

It is an arithmetic number, because the mean of its divisors is an integer number (64236213).

Almost surely, 2^255620201 is an apocalyptic number.

It is an amenable number.

255620201 is a deficient number, since it is larger than the sum of its proper divisors (1324651).

255620201 is a wasteful number, since it uses less digits than its factorization.

255620201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324650.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 255620201 is about 15988.1268759039. The cubic root of 255620201 is about 634.6462584295.

Adding to 255620201 its reverse (102026552), we get a palindrome (357646753).

The spelling of 255620201 in words is "two hundred fifty-five million, six hundred twenty thousand, two hundred one".