63312613 has 8 divisors (see below), whose sum is σ = 77923328. Its totient is φ = 50093424.

The previous prime is 63312611. The next prime is 63312643. The reversal of 63312613 is 31621336.

63312613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 63312613 - 2¹ = 63312611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63312611) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 347781 + ... + 347962.

It is an arithmetic number, because the mean of its divisors is an integer number (9740416).

Almost surely, 2^63312613 is an apocalyptic number.

It is an amenable number.

63312613 is a deficient number, since it is larger than the sum of its proper divisors (14610715).

63312613 is a wasteful number, since it uses less digits than its factorization.

63312613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695763.

The product of its digits is 1944, while the sum is 25.

The square root of 63312613 is about 7956.9223321583. The cubic root of 63312613 is about 398.5627859744.

Adding to 63312613 its reverse (31621336), we get a palindrome (94933949).

The spelling of 63312613 in words is "sixty-three million, three hundred twelve thousand, six hundred thirteen".