63841265 has 4 divisors (see below), whose sum is σ = 76609524. Its totient is φ = 51073008.

The previous prime is 63841237. The next prime is 63841279. The reversal of 63841265 is 56214836.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32615521 + 31225744 = 5711^2 + 5588^2 .

It is a cyclic number.

It is not a de Polignac number, because 63841265 - 2¹⁴ = 63824881 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 6384122 + ... + 6384131.

It is an arithmetic number, because the mean of its divisors is an integer number (19152381).

Almost surely, 2^63841265 is an apocalyptic number.

It is an amenable number.

63841265 is a deficient number, since it is larger than the sum of its proper divisors (12768259).

63841265 is a wasteful number, since it uses less digits than its factorization.

63841265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12768258.

The product of its digits is 34560, while the sum is 35.

The square root of 63841265 is about 7990.0729032969. The cubic root of 63841265 is about 399.6690283032.

The spelling of 63841265 in words is "sixty-three million, eight hundred forty-one thousand, two hundred sixty-five".