63415263 has 4 divisors (see below), whose sum is σ = 84553688. Its totient is φ = 42276840.

The previous prime is 63415249. The next prime is 63415277. The reversal of 63415263 is 36251436.

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

It is an interprime number because it is at equal distance from previous prime (63415249) and next prime (63415277).

It is not a de Polignac number, because 63415263 - 2²⁰ = 62366687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63415263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63415213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10569208 + ... + 10569213.

It is an arithmetic number, because the mean of its divisors is an integer number (21138422).

Almost surely, 2^63415263 is an apocalyptic number.

63415263 is a deficient number, since it is larger than the sum of its proper divisors (21138425).

63415263 is a wasteful number, since it uses less digits than its factorization.

63415263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21138424.

The product of its digits is 12960, while the sum is 30.

The square root of 63415263 is about 7963.3700780511. The cubic root of 63415263 is about 398.7780689288.

Adding to 63415263 its reverse (36251436), we get a palindrome (99666699).

The spelling of 63415263 in words is "sixty-three million, four hundred fifteen thousand, two hundred sixty-three".