65213224 has 16 divisors (see below), whose sum is σ = 129467700. Its totient is φ = 30688512.

The previous prime is 65213221. The next prime is 65213227. The reversal of 65213224 is 42231256.

It is an interprime number because it is at equal distance from previous prime (65213221) and next prime (65213227).

It can be written as a sum of positive squares in 2 ways, for example, as 63202500 + 2010724 = 7950^2 + 1418^2 .

It is not an unprimeable number, because it can be changed into a prime (65213221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239619 + ... + 239890.

Almost surely, 2^65213224 is an apocalyptic number.

It is an amenable number.

65213224 is a deficient number, since it is larger than the sum of its proper divisors (64254476).

65213224 is a wasteful number, since it uses less digits than its factorization.

65213224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479532 (or 479528 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 65213224 is about 8075.4705126079. The cubic root of 65213224 is about 402.5117448317.

The spelling of 65213224 in words is "sixty-five million, two hundred thirteen thousand, two hundred twenty-four".