63315955 has 4 divisors (see below), whose sum is σ = 75979152. Its totient is φ = 50652760.

The previous prime is 63315953. The next prime is 63315971. The reversal of 63315955 is 55951336.

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

It is not a de Polignac number, because 63315955 - 2¹ = 63315953 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (63315953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6331591 + ... + 6331600.

It is an arithmetic number, because the mean of its divisors is an integer number (18994788).

Almost surely, 2^63315955 is an apocalyptic number.

63315955 is a deficient number, since it is larger than the sum of its proper divisors (12663197).

63315955 is a wasteful number, since it uses less digits than its factorization.

63315955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12663196.

The product of its digits is 60750, while the sum is 37.

The square root of 63315955 is about 7957.1323352072. The cubic root of 63315955 is about 398.5697986550.

The spelling of 63315955 in words is "sixty-three million, three hundred fifteen thousand, nine hundred fifty-five".