255005000 has 40 divisors (see below), whose sum is σ = 597488430. Its totient is φ = 102000000.

The previous prime is 255004961. The next prime is 255005041. The reversal of 255005000 is 500552.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 18645124 + 236359876 = 4318^2 + 15374^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 255005000.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20501 + ... + 30500.

Almost surely, 2^255005000 is an apocalyptic number.

255005000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255005000 is an abundant number, since it is smaller than the sum of its proper divisors (342483430).

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

255005000 is an equidigital number, since it uses as much as digits as its factorization.

255005000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51027 (or 51008 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 17.

The square root of 255005000 is about 15968.8759779767. The cubic root of 255005000 is about 634.1367151687.

Adding to 255005000 its reverse (500552), we get a palindrome (255505552).

The spelling of 255005000 in words is "two hundred fifty-five million, five thousand".