63215233 has 4 divisors (see below), whose sum is σ = 63391680. Its totient is φ = 63038788.

The previous prime is 63215219. The next prime is 63215239. The reversal of 63215233 is 33251236.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63215233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63215198 and 63215207.

It is not an unprimeable number, because it can be changed into a prime (63215239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87685 + ... + 88402.

It is an arithmetic number, because the mean of its divisors is an integer number (15847920).

Almost surely, 2^63215233 is an apocalyptic number.

It is an amenable number.

63215233 is a deficient number, since it is larger than the sum of its proper divisors (176447).

63215233 is a wasteful number, since it uses less digits than its factorization.

63215233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176446.

The product of its digits is 3240, while the sum is 25.

The square root of 63215233 is about 7950.8007772802. The cubic root of 63215233 is about 398.3583403514.

Adding to 63215233 its reverse (33251236), we get a palindrome (96466469).

It can be divided in two parts, 63 and 215233, that added together give a square (215296 = 464²).

The spelling of 63215233 in words is "sixty-three million, two hundred fifteen thousand, two hundred thirty-three".