63125533 has 4 divisors (see below), whose sum is σ = 63169308. Its totient is φ = 63081760.

The previous prime is 63125479. The next prime is 63125549. The reversal of 63125533 is 33552136.

63125533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 58951684 + 4173849 = 7678^2 + 2043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63125533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63125633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19648 + ... + 22633.

It is an arithmetic number, because the mean of its divisors is an integer number (15792327).

Almost surely, 2^63125533 is an apocalyptic number.

It is an amenable number.

63125533 is a deficient number, since it is larger than the sum of its proper divisors (43775).

63125533 is a wasteful number, since it uses less digits than its factorization.

63125533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43774.

The product of its digits is 8100, while the sum is 28.

The square root of 63125533 is about 7945.1578335487. The cubic root of 63125533 is about 398.1698327407.

Adding to 63125533 its reverse (33552136), we get a palindrome (96677669).

The spelling of 63125533 in words is "sixty-three million, one hundred twenty-five thousand, five hundred thirty-three".