630616255 has 8 divisors (see below), whose sum is σ = 759174624. Its totient is φ = 502869600.

The previous prime is 630616253. The next prime is 630616297. The reversal of 630616255 is 552616036.

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

It is not a de Polignac number, because 630616255 - 2¹ = 630616253 is a prime.

It is a super-2 number, since 2×630616255² = 795353722140450050, which contains 22 as substring.

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 630616255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630616253) 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 7 ways as a sum of consecutive naturals, for example, 201216 + ... + 204325.

It is an arithmetic number, because the mean of its divisors is an integer number (94896828).

Almost surely, 2^630616255 is an apocalyptic number.

630616255 is a deficient number, since it is larger than the sum of its proper divisors (128558369).

630616255 is a wasteful number, since it uses less digits than its factorization.

630616255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405857.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 630616255 is about 25112.0738888687. The cubic root of 630616255 is about 857.5413166775.

The spelling of 630616255 in words is "six hundred thirty million, six hundred sixteen thousand, two hundred fifty-five".