63505005 has 8 divisors (see below), whose sum is σ = 101608032. Its totient is φ = 33869328.

The previous prime is 63504989. The next prime is 63505009. The reversal of 63505005 is 50050536.

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

It is not a de Polignac number, because 63505005 - 2⁴ = 63504989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63505009) 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, 2116819 + ... + 2116848.

It is an arithmetic number, because the mean of its divisors is an integer number (12701004).

Almost surely, 2^63505005 is an apocalyptic number.

It is an amenable number.

63505005 is a deficient number, since it is larger than the sum of its proper divisors (38103027).

63505005 is a wasteful number, since it uses less digits than its factorization.

63505005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233675.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 63505005 is about 7969.0027606972. The cubic root of 63505005 is about 398.9660902960.

The spelling of 63505005 in words is "sixty-three million, five hundred five thousand, five".