512649701 has 4 divisors (see below), whose sum is σ = 518409900. Its totient is φ = 506889504.

The previous prime is 512649677. The next prime is 512649703. The reversal of 512649701 is 107946215.

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

It can be written as a sum of positive squares in 2 ways, for example, as 77968900 + 434680801 = 8830^2 + 20849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512649701 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 (512649703) 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, 2879966 + ... + 2880143.

It is an arithmetic number, because the mean of its divisors is an integer number (129602475).

Almost surely, 2^512649701 is an apocalyptic number.

It is an amenable number.

512649701 is a deficient number, since it is larger than the sum of its proper divisors (5760199).

512649701 is an equidigital number, since it uses as much as digits as its factorization.

512649701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760198.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 512649701 is about 22641.7689459106. The cubic root of 512649701 is about 800.3382429070.

The spelling of 512649701 in words is "five hundred twelve million, six hundred forty-nine thousand, seven hundred one".