513040250 has 48 divisors (see below), whose sum is σ = 982336680. Its totient is φ = 200633600.

The previous prime is 513040237. The next prime is 513040271. The reversal of 513040250 is 52040315.

It can be written as a sum of positive squares in 4 ways, for example, as 31281649 + 481758601 = 5593^2 + 21949^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 551786 + ... + 552714.

Almost surely, 2^513040250 is an apocalyptic number.

513040250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

513040250 is a deficient number, since it is larger than the sum of its proper divisors (469296430).

513040250 is an equidigital number, since it uses as much as digits as its factorization.

513040250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 513040250 is about 22650.3918288404. The cubic root of 513040250 is about 800.5414303588.

Adding to 513040250 its reverse (52040315), we get a palindrome (565080565).

The spelling of 513040250 in words is "five hundred thirteen million, forty thousand, two hundred fifty".