513135250 has 64 divisors (see below), whose sum is σ = 1006267392. Its totient is φ = 195696000.

The previous prime is 513135229. The next prime is 513135283. The reversal of 513135250 is 52531315.

513135250 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 565297 + ... + 566203.

It is an arithmetic number, because the mean of its divisors is an integer number (15722928).

Almost surely, 2^513135250 is an apocalyptic number.

513135250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

513135250 is a deficient number, since it is larger than the sum of its proper divisors (493132142).

513135250 is a wasteful number, since it uses less digits than its factorization.

513135250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 513135250 is about 22652.4888257339. The cubic root of 513135250 is about 800.5908395700.

Adding to 513135250 its reverse (52531315), we get a palindrome (565666565).

The spelling of 513135250 in words is "five hundred thirteen million, one hundred thirty-five thousand, two hundred fifty".