63965575 has 12 divisors (see below), whose sum is σ = 80090608. Its totient is φ = 50673600.

The previous prime is 63965569. The next prime is 63965579. The reversal of 63965575 is 57556936.

It is not a de Polignac number, because 63965575 - 2³ = 63965567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63965579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9846 + ... + 14995.

Almost surely, 2^63965575 is an apocalyptic number.

63965575 is a deficient number, since it is larger than the sum of its proper divisors (16125033).

63965575 is a wasteful number, since it uses less digits than its factorization.

63965575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24954 (or 24949 counting only the distinct ones).

The product of its digits is 850500, while the sum is 46.

The square root of 63965575 is about 7997.8481480958. The cubic root of 63965575 is about 399.9282683872.

The spelling of 63965575 in words is "sixty-three million, nine hundred sixty-five thousand, five hundred seventy-five".