63125563 has 4 divisors (see below), whose sum is σ = 63776440. Its totient is φ = 62474688.

The previous prime is 63125561. The next prime is 63125617. The reversal of 63125563 is 36552136.

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

It is a cyclic number.

It is not a de Polignac number, because 63125563 - 2¹ = 63125561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63125561) 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, 325293 + ... + 325486.

It is an arithmetic number, because the mean of its divisors is an integer number (15944110).

Almost surely, 2^63125563 is an apocalyptic number.

63125563 is a deficient number, since it is larger than the sum of its proper divisors (650877).

63125563 is an equidigital number, since it uses as much as digits as its factorization.

63125563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650876.

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

The square root of 63125563 is about 7945.1597214908. The cubic root of 63125563 is about 398.1698958166.

Adding to 63125563 its reverse (36552136), we get a palindrome (99677699).

The spelling of 63125563 in words is "sixty-three million, one hundred twenty-five thousand, five hundred sixty-three".