630553613 has 4 divisors (see below), whose sum is σ = 667645020. Its totient is φ = 593462208.

The previous prime is 630553607. The next prime is 630553619. The reversal of 630553613 is 316355036.

630553613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (630553607) and next prime (630553619).

It can be written as a sum of positive squares in 2 ways, for example, as 334816804 + 295736809 = 18298^2 + 17197^2 .

It is a cyclic number.

It is not a de Polignac number, because 630553613 - 2¹⁰ = 630552589 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 630553613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630553619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18545678 + ... + 18545711.

It is an arithmetic number, because the mean of its divisors is an integer number (166911255).

Almost surely, 2^630553613 is an apocalyptic number.

It is an amenable number.

630553613 is a deficient number, since it is larger than the sum of its proper divisors (37091407).

630553613 is a wasteful number, since it uses less digits than its factorization.

630553613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37091406.

The product of its (nonzero) digits is 24300, while the sum is 32.

The square root of 630553613 is about 25110.8266092536. The cubic root of 630553613 is about 857.5129212354.

The spelling of 630553613 in words is "six hundred thirty million, five hundred fifty-three thousand, six hundred thirteen".