505008250 has 32 divisors (see below), whose sum is σ = 956039760. Its totient is φ = 199724800.

The previous prime is 505008247. The next prime is 505008289. The reversal of 505008250 is 52800505.

It can be written as a sum of positive squares in 8 ways, for example, as 61105489 + 443902761 = 7817^2 + 21069^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10902 + ... + 33598.

Almost surely, 2^505008250 is an apocalyptic number.

505008250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505008250 is a deficient number, since it is larger than the sum of its proper divisors (451031510).

505008250 is a wasteful number, since it uses less digits than its factorization.

505008250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22803 (or 22793 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 505008250 is about 22472.3886135853. The cubic root of 505008250 is about 796.3417606462.

Adding to 505008250 its reverse (52800505), we get a palindrome (557808755).

The spelling of 505008250 in words is "five hundred five million, eight thousand, two hundred fifty".