630505513 has 8 divisors (see below), whose sum is σ = 688946400. Its totient is φ = 572251680.

The previous prime is 630505507. The next prime is 630505523. The reversal of 630505513 is 315505036.

It is a happy number.

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

It is not a de Polignac number, because 630505513 - 2¹⁷ = 630374441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630505523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39663 + ... + 53236.

It is an arithmetic number, because the mean of its divisors is an integer number (86118300).

Almost surely, 2^630505513 is an apocalyptic number.

It is an amenable number.

630505513 is a deficient number, since it is larger than the sum of its proper divisors (58440887).

630505513 is a wasteful number, since it uses less digits than its factorization.

630505513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93527.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 630505513 is about 25109.8688367741. The cubic root of 630505513 is about 857.4911163645.

The spelling of 630505513 in words is "six hundred thirty million, five hundred five thousand, five hundred thirteen".