64222559 has 4 divisors (see below), whose sum is σ = 66437160. Its totient is φ = 62007960.

The previous prime is 64222547. The next prime is 64222573. The reversal of 64222559 is 95522246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95522246 = 2 ⋅47761123.

It is a cyclic number.

It is not a de Polignac number, because 64222559 - 2¹² = 64218463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64222519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107257 + ... + 1107314.

It is an arithmetic number, because the mean of its divisors is an integer number (16609290).

Almost surely, 2^64222559 is an apocalyptic number.

64222559 is a deficient number, since it is larger than the sum of its proper divisors (2214601).

64222559 is a wasteful number, since it uses less digits than its factorization.

64222559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214600.

The product of its digits is 43200, while the sum is 35.

The square root of 64222559 is about 8013.8978655833. The cubic root of 64222559 is about 400.4631281572.

The spelling of 64222559 in words is "sixty-four million, two hundred twenty-two thousand, five hundred fifty-nine".