63256865 has 16 divisors (see below), whose sum is σ = 89098752. Its totient is φ = 42202944.

The previous prime is 63256861. The next prime is 63256883. The reversal of 63256865 is 56865236.

It is not a de Polignac number, because 63256865 - 2² = 63256861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63256861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23129 + ... + 25718.

It is an arithmetic number, because the mean of its divisors is an integer number (5568672).

Almost surely, 2^63256865 is an apocalyptic number.

It is an amenable number.

63256865 is a deficient number, since it is larger than the sum of its proper divisors (25841887).

63256865 is a wasteful number, since it uses less digits than its factorization.

63256865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48896.

The product of its digits is 259200, while the sum is 41.

The square root of 63256865 is about 7953.4184474350. The cubic root of 63256865 is about 398.4457708343.

The spelling of 63256865 in words is "sixty-three million, two hundred fifty-six thousand, eight hundred sixty-five".