63310561 has 8 divisors (see below), whose sum is σ = 63945000. Its totient is φ = 62679552.

The previous prime is 63310531. The next prime is 63310571. The reversal of 63310561 is 16501336.

It can be written as a sum of positive squares in 4 ways, for example, as 36529936 + 26780625 = 6044^2 + 5175^2 .

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 63310561 - 2⁷ = 63310433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63310501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50065 + ... + 51313.

It is an arithmetic number, because the mean of its divisors is an integer number (7993125).

Almost surely, 2^63310561 is an apocalyptic number.

It is an amenable number.

63310561 is a deficient number, since it is larger than the sum of its proper divisors (634439).

63310561 is a wasteful number, since it uses less digits than its factorization.

63310561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 63310561 is about 7956.7933867859. The cubic root of 63310561 is about 398.5584800410.

Adding to 63310561 its reverse (16501336), we get a palindrome (79811897).

The spelling of 63310561 in words is "sixty-three million, three hundred ten thousand, five hundred sixty-one".