632506561 has 8 divisors (see below), whose sum is σ = 666057920. Its totient is φ = 598981392.

The previous prime is 632506543. The next prime is 632506571. The reversal of 632506561 is 165605236.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632506561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (632506571) 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, 60991 + ... + 70603.

It is an arithmetic number, because the mean of its divisors is an integer number (83257240).

Almost surely, 2^632506561 is an apocalyptic number.

It is an amenable number.

632506561 is a deficient number, since it is larger than the sum of its proper divisors (33551359).

632506561 is a wasteful number, since it uses less digits than its factorization.

632506561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13095.

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

The square root of 632506561 is about 25149.6831192761. The cubic root of 632506561 is about 858.3973039659.

The spelling of 632506561 in words is "six hundred thirty-two million, five hundred six thousand, five hundred sixty-one".