65222944 has 12 divisors (see below), whose sum is σ = 128407734. Its totient is φ = 32611456.

The previous prime is 65222933. The next prime is 65222947. The reversal of 65222944 is 44922256.

It can be written as a sum of positive squares in only one way, i.e., 45968400 + 19254544 = 6780^2 + 4388^2 .

It is not an unprimeable number, because it can be changed into a prime (65222947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1019077 + ... + 1019140.

Almost surely, 2^65222944 is an apocalyptic number.

It is an amenable number.

65222944 is a deficient number, since it is larger than the sum of its proper divisors (63184790).

65222944 is a wasteful number, since it uses less digits than its factorization.

65222944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038227 (or 2038219 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 65222944 is about 8076.0723127025. The cubic root of 65222944 is about 402.5317418996.

It can be divided in two parts, 65222 and 944, that added together give a palindrome (66166).

The spelling of 65222944 in words is "sixty-five million, two hundred twenty-two thousand, nine hundred forty-four".