63225533 has 20 divisors (see below), whose sum is σ = 78147900. Its totient is φ = 50972544.

The previous prime is 63225529. The next prime is 63225541. The reversal of 63225533 is 33552236.

It can be written as a sum of positive squares in 2 ways, for example, as 35736484 + 27489049 = 5978^2 + 5243^2 .

It is not a de Polignac number, because 63225533 - 2² = 63225529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63225496 and 63225505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63225583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 40043 + ... + 41591.

It is an arithmetic number, because the mean of its divisors is an integer number (3907395).

Almost surely, 2^63225533 is an apocalyptic number.

It is an amenable number.

63225533 is a deficient number, since it is larger than the sum of its proper divisors (14922367).

63225533 is an equidigital number, since it uses as much as digits as its factorization.

63225533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594 (or 1573 counting only the distinct ones).

The product of its digits is 16200, while the sum is 29.

The square root of 63225533 is about 7951.4484843958. The cubic root of 63225533 is about 398.3799747365.

Adding to 63225533 its reverse (33552236), we get a palindrome (96777769).

The spelling of 63225533 in words is "sixty-three million, two hundred twenty-five thousand, five hundred thirty-three".