65056216 has 8 divisors (see below), whose sum is σ = 121980420. Its totient is φ = 32528104.

The previous prime is 65056183. The next prime is 65056219. The reversal of 65056216 is 61265056.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×65056216² = 8464622480477312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65056219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4066006 + ... + 4066021.

Almost surely, 2^65056216 is an apocalyptic number.

It is an amenable number.

65056216 is a deficient number, since it is larger than the sum of its proper divisors (56924204).

65056216 is a wasteful number, since it uses less digits than its factorization.

65056216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8132033 (or 8132029 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 65056216 is about 8065.7433631377. The cubic root of 65056216 is about 402.1884548277.

It can be divided in two parts, 6505 and 6216, that added together give a palindrome (12721).

The spelling of 65056216 in words is "sixty-five million, fifty-six thousand, two hundred sixteen".