255100225 has 12 divisors (see below), whose sum is σ = 317936124. Its totient is φ = 203040320.

The previous prime is 255100217. The next prime is 255100267. The reversal of 255100225 is 522001552.

It can be written as a sum of positive squares in 6 ways, for example, as 123201 + 254977024 = 351^2 + 15968^2 .

It is not a de Polignac number, because 255100225 - 2³ = 255100217 is a prime.

It is a super-2 number, since 2×255100225² = 130152249590101250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255100196 and 255100205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20974 + ... + 30823.

It is an arithmetic number, because the mean of its divisors is an integer number (26494677).

Almost surely, 2^255100225 is an apocalyptic number.

255100225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255100225 is a deficient number, since it is larger than the sum of its proper divisors (62835899).

255100225 is a wasteful number, since it uses less digits than its factorization.

255100225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52004 (or 51999 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 255100225 is about 15971.8572808550. The cubic root of 255100225 is about 634.2156393124.

Adding to 255100225 its reverse (522001552), we get a palindrome (777101777).

The spelling of 255100225 in words is "two hundred fifty-five million, one hundred thousand, two hundred twenty-five".