513657244 has 12 divisors (see below), whose sum is σ = 951776784. Its totient is φ = 241721024.

The previous prime is 513657233. The next prime is 513657247. The reversal of 513657244 is 442756315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513657247) 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 3 ways as a sum of consecutive naturals, for example, 3776824 + ... + 3776959.

It is an arithmetic number, because the mean of its divisors is an integer number (79314732).

Almost surely, 2^513657244 is an apocalyptic number.

It is an amenable number.

513657244 is a deficient number, since it is larger than the sum of its proper divisors (438119540).

513657244 is a wasteful number, since it uses less digits than its factorization.

513657244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7553804 (or 7553802 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 513657244 is about 22664.0076773725. The cubic root of 513657244 is about 800.8622183073.

The spelling of 513657244 in words is "five hundred thirteen million, six hundred fifty-seven thousand, two hundred forty-four".