63504605 has 8 divisors (see below), whose sum is σ = 80688312. Its totient is φ = 47815168.

The previous prime is 63504559. The next prime is 63504641. The reversal of 63504605 is 50640536.

It can be written as a sum of positive squares in 4 ways, for example, as 14546596 + 48958009 = 3814^2 + 6997^2 .

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 63504605 - 2¹⁶ = 63439069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373472 + ... + 373641.

It is an arithmetic number, because the mean of its divisors is an integer number (10086039).

Almost surely, 2^63504605 is an apocalyptic number.

It is an amenable number.

63504605 is a deficient number, since it is larger than the sum of its proper divisors (17183707).

63504605 is a wasteful number, since it uses less digits than its factorization.

63504605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747135.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 63504605 is about 7968.9776634145. The cubic root of 63504605 is about 398.9652526362.

The spelling of 63504605 in words is "sixty-three million, five hundred four thousand, six hundred five".