255225100 has 72 divisors (see below), whose sum is σ = 627893840. Its totient is φ = 89268480.

The previous prime is 255225079. The next prime is 255225101. The reversal of 255225100 is 1522552.

It is not an unprimeable number, because it can be changed into a prime (255225101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19534 + ... + 29866.

Almost surely, 2^255225100 is an apocalyptic number.

255225100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255225100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313946920).

255225100 is an abundant number, since it is smaller than the sum of its proper divisors (372668740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255225100 is a wasteful number, since it uses less digits than its factorization.

255225100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10379 (or 10372 counting only the distinct ones).

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

The square root of 255225100 is about 15975.7660223227. The cubic root of 255225100 is about 634.3191081336.

Adding to 255225100 its reverse (1522552), we get a palindrome (256747652).

The spelling of 255225100 in words is "two hundred fifty-five million, two hundred twenty-five thousand, one hundred".