513632983 has 4 divisors (see below), whose sum is σ = 515284848. Its totient is φ = 511981120.

The previous prime is 513632929. The next prime is 513632989. The reversal of 513632983 is 389236315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513632983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513632989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825466 + ... + 826087.

It is an arithmetic number, because the mean of its divisors is an integer number (128821212).

Almost surely, 2^513632983 is an apocalyptic number.

513632983 is a deficient number, since it is larger than the sum of its proper divisors (1651865).

513632983 is a wasteful number, since it uses less digits than its factorization.

513632983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651864.

The product of its digits is 116640, while the sum is 40.

The square root of 513632983 is about 22663.4724391475. The cubic root of 513632983 is about 800.8496093647.

The spelling of 513632983 in words is "five hundred thirteen million, six hundred thirty-two thousand, nine hundred eighty-three".