20130255 has 16 divisors (see below), whose sum is σ = 35787360. Its totient is φ = 10736064.

The previous prime is 20130251. The next prime is 20130281. The reversal of 20130255 is 55203102.

It is a happy number.

It is not a de Polignac number, because 20130255 - 2² = 20130251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74422 + ... + 74691.

It is an arithmetic number, because the mean of its divisors is an integer number (2236710).

Almost surely, 2^20130255 is an apocalyptic number.

20130255 is a deficient number, since it is larger than the sum of its proper divisors (15657105).

20130255 is a wasteful number, since it uses less digits than its factorization.

20130255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149127 (or 149121 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 20130255 is about 4486.6752724038. The cubic root of 20130255 is about 272.0297644403.

Adding to 20130255 its reverse (55203102), we get a palindrome (75333357).

The spelling of 20130255 in words is "twenty million, one hundred thirty thousand, two hundred fifty-five".