630530755 has 4 divisors (see below), whose sum is σ = 756636912. Its totient is φ = 504424600.

The previous prime is 630530741. The next prime is 630530767. The reversal of 630530755 is 557035036.

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

It is not a de Polignac number, because 630530755 - 2⁵ = 630530723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630530755.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63053071 + ... + 63053080.

It is an arithmetic number, because the mean of its divisors is an integer number (189159228).

Almost surely, 2^630530755 is an apocalyptic number.

630530755 is a deficient number, since it is larger than the sum of its proper divisors (126106157).

630530755 is a wasteful number, since it uses less digits than its factorization.

630530755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126106156.

The product of its (nonzero) digits is 47250, while the sum is 34.

The square root of 630530755 is about 25110.3714628040. The cubic root of 630530755 is about 857.5025593001.

The spelling of 630530755 in words is "six hundred thirty million, five hundred thirty thousand, seven hundred fifty-five".