63248665 has 4 divisors (see below), whose sum is σ = 75898404. Its totient is φ = 50598928.

The previous prime is 63248659. The next prime is 63248693. The reversal of 63248665 is 56684236.

It is a happy number.

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 8088336 + 55160329 = 2844^2 + 7427^2 .

It is a cyclic number.

It is not a de Polignac number, because 63248665 - 2¹³ = 63240473 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 6324862 + ... + 6324871.

It is an arithmetic number, because the mean of its divisors is an integer number (18974601).

Almost surely, 2^63248665 is an apocalyptic number.

It is an amenable number.

63248665 is a deficient number, since it is larger than the sum of its proper divisors (12649739).

63248665 is a wasteful number, since it uses less digits than its factorization.

63248665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12649738.

The product of its digits is 207360, while the sum is 40.

The square root of 63248665 is about 7952.9029291197. The cubic root of 63248665 is about 398.4285532221.

The spelling of 63248665 in words is "sixty-three million, two hundred forty-eight thousand, six hundred sixty-five".