513666501 has 8 divisors (see below), whose sum is σ = 720935520. Its totient is φ = 324420912.

The previous prime is 513666487. The next prime is 513666541. The reversal of 513666501 is 105666315.

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

It is not a de Polignac number, because 513666501 - 2⁹ = 513665989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513666541) 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 7 ways as a sum of consecutive naturals, for example, 4505790 + ... + 4505903.

It is an arithmetic number, because the mean of its divisors is an integer number (90116940).

Almost surely, 2^513666501 is an apocalyptic number.

It is an amenable number.

513666501 is a deficient number, since it is larger than the sum of its proper divisors (207269019).

513666501 is a wasteful number, since it uses less digits than its factorization.

513666501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9011715.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 513666501 is about 22664.2118989388. The cubic root of 513666501 is about 800.8670292567.

The spelling of 513666501 in words is "five hundred thirteen million, six hundred sixty-six thousand, five hundred one".