63507263 has 2 divisors, whose sum is σ = 63507264. Its totient is φ = 63507262.

The previous prime is 63507167. The next prime is 63507287. The reversal of 63507263 is 36270536.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63507263 - 2²² = 59312959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63537263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31753631 + 31753632.

It is an arithmetic number, because the mean of its divisors is an integer number (31753632).

Almost surely, 2^63507263 is an apocalyptic number.

63507263 is a deficient number, since it is larger than the sum of its proper divisors (1).

63507263 is an equidigital number, since it uses as much as digits as its factorization.

63507263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 63507263 is about 7969.1444333755. The cubic root of 63507263 is about 398.9708188197.

Adding to 63507263 its reverse (36270536), we get a palindrome (99777799).

The spelling of 63507263 in words is "sixty-three million, five hundred seven thousand, two hundred sixty-three".