64255222 has 4 divisors (see below), whose sum is σ = 96382836. Its totient is φ = 32127610.

The previous prime is 64255187. The next prime is 64255229. The reversal of 64255222 is 22255246.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64255229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16063804 + ... + 16063807.

It is an arithmetic number, because the mean of its divisors is an integer number (24095709).

Almost surely, 2^64255222 is an apocalyptic number.

64255222 is a deficient number, since it is larger than the sum of its proper divisors (32127614).

64255222 is a wasteful number, since it uses less digits than its factorization.

64255222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32127613.

The product of its digits is 9600, while the sum is 28.

The square root of 64255222 is about 8015.9355037325. The cubic root of 64255222 is about 400.5310072663.

The spelling of 64255222 in words is "sixty-four million, two hundred fifty-five thousand, two hundred twenty-two".