63212522 has 4 divisors (see below), whose sum is σ = 94818786. Its totient is φ = 31606260.

The previous prime is 63212521. The next prime is 63212581. The reversal of 63212522 is 22521236.

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

It can be written as a sum of positive squares in only one way, i.e., 63186601 + 25921 = 7949^2 + 161^2 .

It is not an unprimeable number, because it can be changed into a prime (63212521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15803129 + ... + 15803132.

Almost surely, 2^63212522 is an apocalyptic number.

63212522 is a deficient number, since it is larger than the sum of its proper divisors (31606264).

63212522 is a wasteful number, since it uses less digits than its factorization.

63212522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31606263.

The product of its digits is 1440, while the sum is 23.

The square root of 63212522 is about 7950.6302894802. The cubic root of 63212522 is about 398.3526457066.

Adding to 63212522 its reverse (22521236), we get a palindrome (85733758).

The spelling of 63212522 in words is "sixty-three million, two hundred twelve thousand, five hundred twenty-two".