64225822 has 4 divisors (see below), whose sum is σ = 96338736. Its totient is φ = 32112910.

The previous prime is 64225739. The next prime is 64225841. The reversal of 64225822 is 22852246.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16056454 + ... + 16056457.

It is an arithmetic number, because the mean of its divisors is an integer number (24084684).

Almost surely, 2^64225822 is an apocalyptic number.

64225822 is a deficient number, since it is larger than the sum of its proper divisors (32112914).

64225822 is a wasteful number, since it uses less digits than its factorization.

64225822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32112913.

The product of its digits is 15360, while the sum is 31.

The square root of 64225822 is about 8014.1014468248. The cubic root of 64225822 is about 400.4699102447.

It can be divided in two parts, 64225 and 822, that multiplied together give a triangular number (52792950 = T₁₀₂₇₅).

The spelling of 64225822 in words is "sixty-four million, two hundred twenty-five thousand, eight hundred twenty-two".