63222251 has 4 divisors (see below), whose sum is σ = 63720192. Its totient is φ = 62724312.

The previous prime is 63222241. The next prime is 63222259. The reversal of 63222251 is 15222236.

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

It is a cyclic number.

It is not a de Polignac number, because 63222251 - 2¹⁴ = 63205867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63222259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248780 + ... + 249033.

It is an arithmetic number, because the mean of its divisors is an integer number (15930048).

Almost surely, 2^63222251 is an apocalyptic number.

63222251 is a deficient number, since it is larger than the sum of its proper divisors (497941).

63222251 is a wasteful number, since it uses less digits than its factorization.

63222251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497940.

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

The square root of 63222251 is about 7951.2421042250. The cubic root of 63222251 is about 398.3730813943.

Adding to 63222251 its reverse (15222236), we get a palindrome (78444487).

The spelling of 63222251 in words is "sixty-three million, two hundred twenty-two thousand, two hundred fifty-one".