65225866 has 4 divisors (see below), whose sum is σ = 97838802. Its totient is φ = 32612932.

The previous prime is 65225851. The next prime is 65225893. The reversal of 65225866 is 66852256.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 52056225 + 13169641 = 7215^2 + 3629^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16306465 + ... + 16306468.

Almost surely, 2^65225866 is an apocalyptic number.

65225866 is a deficient number, since it is larger than the sum of its proper divisors (32612936).

65225866 is a wasteful number, since it uses less digits than its factorization.

65225866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32612935.

The product of its digits is 172800, while the sum is 40.

The square root of 65225866 is about 8076.2532154459. The cubic root of 65225866 is about 402.5377529754.

The spelling of 65225866 in words is "sixty-five million, two hundred twenty-five thousand, eight hundred sixty-six".