64222051 has 4 divisors (see below), whose sum is σ = 64884232. Its totient is φ = 63559872.

The previous prime is 64222019. The next prime is 64222063. The reversal of 64222051 is 15022246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15022246 = 2 ⋅7511123.

It is a cyclic number.

It is not a de Polignac number, because 64222051 - 2⁵ = 64222019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64222001) 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, 330945 + ... + 331138.

It is an arithmetic number, because the mean of its divisors is an integer number (16221058).

Almost surely, 2^64222051 is an apocalyptic number.

64222051 is a deficient number, since it is larger than the sum of its proper divisors (662181).

64222051 is an equidigital number, since it uses as much as digits as its factorization.

64222051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662180.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 64222051 is about 8013.8661705821. The cubic root of 64222051 is about 400.4620722675.

Adding to 64222051 its reverse (15022246), we get a palindrome (79244297).

The spelling of 64222051 in words is "sixty-four million, two hundred twenty-two thousand, fifty-one".