63985256 has 16 divisors (see below), whose sum is σ = 122899140. Its totient is φ = 31212160.

The previous prime is 63985249. The next prime is 63985307. The reversal of 63985256 is 65258936.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43428100 + 20557156 = 6590^2 + 4534^2 .

It is a super-3 number, since 3×63985256³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97211 + ... + 97866.

Almost surely, 2^63985256 is an apocalyptic number.

It is an amenable number.

63985256 is a deficient number, since it is larger than the sum of its proper divisors (58913884).

63985256 is a wasteful number, since it uses less digits than its factorization.

63985256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195124 (or 195120 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 63985256 is about 7999.0784469212. The cubic root of 63985256 is about 399.9692809742.

The spelling of 63985256 in words is "sixty-three million, nine hundred eighty-five thousand, two hundred fifty-six".