63315265 has 16 divisors (see below), whose sum is σ = 84646800. Its totient is φ = 45142272.

The previous prime is 63315257. The next prime is 63315269. The reversal of 63315265 is 56251336.

It can be written as a sum of positive squares in 8 ways, for example, as 446224 + 62869041 = 668^2 + 7929^2 .

It is a cyclic number.

It is not a de Polignac number, because 63315265 - 2³ = 63315257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63315269) 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, 14910 + ... + 18679.

It is an arithmetic number, because the mean of its divisors is an integer number (5290425).

Almost surely, 2^63315265 is an apocalyptic number.

63315265 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63315265 is a deficient number, since it is larger than the sum of its proper divisors (21331535).

63315265 is a wasteful number, since it uses less digits than its factorization.

63315265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33636.

The product of its digits is 16200, while the sum is 31.

The square root of 63315265 is about 7957.0889777606. The cubic root of 63315265 is about 398.5683508147.

The spelling of 63315265 in words is "sixty-three million, three hundred fifteen thousand, two hundred sixty-five".