513257228 has 24 divisors (see below), whose sum is σ = 981033984. Its totient is φ = 233018000.

The previous prime is 513257221. The next prime is 513257231. The reversal of 513257228 is 822752315.

It is not an unprimeable number, because it can be changed into a prime (513257221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32453 + ... + 45603.

It is an arithmetic number, because the mean of its divisors is an integer number (40876416).

Almost surely, 2^513257228 is an apocalyptic number.

It is an amenable number.

513257228 is a deficient number, since it is larger than the sum of its proper divisors (467776756).

513257228 is a wasteful number, since it uses less digits than its factorization.

513257228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14053 (or 14051 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 513257228 is about 22655.1810409893. The cubic root of 513257228 is about 800.6542710159.

The spelling of 513257228 in words is "five hundred thirteen million, two hundred fifty-seven thousand, two hundred twenty-eight".