63222157 has 4 divisors (see below), whose sum is σ = 63239580. Its totient is φ = 63204736.

The previous prime is 63222151. The next prime is 63222223. The reversal of 63222157 is 75122236.

63222157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51566761 + 11655396 = 7181^2 + 3414^2 .

It is a cyclic number.

It is not a de Polignac number, because 63222157 - 2³ = 63222149 is a prime.

It is a super-2 number, since 2×63222157² = 7994082271465298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63222151) 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, 982 + ... + 11287.

It is an arithmetic number, because the mean of its divisors is an integer number (15809895).

Almost surely, 2^63222157 is an apocalyptic number.

It is an amenable number.

63222157 is a deficient number, since it is larger than the sum of its proper divisors (17423).

63222157 is a wasteful number, since it uses less digits than its factorization.

63222157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17422.

The product of its digits is 5040, while the sum is 28.

The square root of 63222157 is about 7951.2361931966. The cubic root of 63222157 is about 398.3728839580.

The spelling of 63222157 in words is "sixty-three million, two hundred twenty-two thousand, one hundred fifty-seven".