513052642 has 8 divisors (see below), whose sum is σ = 769690332. Its totient is φ = 256489200.

The previous prime is 513052627. The next prime is 513052643. The reversal of 513052642 is 246250315.

It can be written as a sum of positive squares in 2 ways, for example, as 510714801 + 2337841 = 22599^2 + 1529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 513052642.

It is not an unprimeable number, because it can be changed into a prime (513052643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4392 + ... + 32332.

Almost surely, 2^513052642 is an apocalyptic number.

513052642 is a deficient number, since it is larger than the sum of its proper divisors (256637690).

513052642 is a wasteful number, since it uses less digits than its factorization.

513052642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37124.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 513052642 is about 22650.6653765403. The cubic root of 513052642 is about 800.5478757462.

The spelling of 513052642 in words is "five hundred thirteen million, fifty-two thousand, six hundred forty-two".