63551222 has 8 divisors (see below), whose sum is σ = 108944976. Its totient is φ = 27236232.

The previous prime is 63551221. The next prime is 63551227. The reversal of 63551222 is 22215536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 63551191 and 63551200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63551221) 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 3 ways as a sum of consecutive naturals, for example, 2269673 + ... + 2269700.

It is an arithmetic number, because the mean of its divisors is an integer number (13618122).

Almost surely, 2^63551222 is an apocalyptic number.

63551222 is a deficient number, since it is larger than the sum of its proper divisors (45393754).

63551222 is a wasteful number, since it uses less digits than its factorization.

63551222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539382.

The product of its digits is 3600, while the sum is 26.

The square root of 63551222 is about 7971.9020315104. The cubic root of 63551222 is about 399.0628519318.

Adding to 63551222 its reverse (22215536), we get a palindrome (85766758).

The spelling of 63551222 in words is "sixty-three million, five hundred fifty-one thousand, two hundred twenty-two".