63649504 has 24 divisors (see below), whose sum is σ = 125570088. Its totient is φ = 31758720.

The previous prime is 63649501. The next prime is 63649517. The reversal of 63649504 is 40594636.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63649501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16039 + ... + 19609.

It is an arithmetic number, because the mean of its divisors is an integer number (5232087).

Almost surely, 2^63649504 is an apocalyptic number.

It is an amenable number.

63649504 is a deficient number, since it is larger than the sum of its proper divisors (61920584).

63649504 is a wasteful number, since it uses less digits than its factorization.

63649504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138 (or 4130 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 63649504 is about 7978.0639255398. The cubic root of 63649504 is about 399.2684629494.

The spelling of 63649504 in words is "sixty-three million, six hundred forty-nine thousand, five hundred four".