63213512 has 16 divisors (see below), whose sum is σ = 118673100. Its totient is φ = 31567360.

The previous prime is 63213511. The next prime is 63213517. The reversal of 63213512 is 21531236.

63213512 = 1124² + 1125² + ... + 1171².

63213512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61559716 + 1653796 = 7846^2 + 1286^2 .

It is not an unprimeable number, because it can be changed into a prime (63213511) 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, 2564 + ... + 11532.

Almost surely, 2^63213512 is an apocalyptic number.

It is an amenable number.

63213512 is a deficient number, since it is larger than the sum of its proper divisors (55459588).

63213512 is a wasteful number, since it uses less digits than its factorization.

63213512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9856 (or 9852 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 63213512 is about 7950.6925484514. The cubic root of 63213512 is about 398.3547252896.

Adding to 63213512 its reverse (21531236), we get a palindrome (84744748).

The spelling of 63213512 in words is "sixty-three million, two hundred thirteen thousand, five hundred twelve".