65572216 has 16 divisors (see below), whose sum is σ = 123686640. Its totient is φ = 32589120.

The previous prime is 65572207. The next prime is 65572231. The reversal of 65572216 is 61227556.

It is a super-2 number, since 2×65572216² = 8599431022301312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23205 + ... + 25876.

It is an arithmetic number, because the mean of its divisors is an integer number (7730415).

Almost surely, 2^65572216 is an apocalyptic number.

It is an amenable number.

65572216 is a deficient number, since it is larger than the sum of its proper divisors (58114424).

65572216 is a wasteful number, since it uses less digits than its factorization.

65572216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49254 (or 49250 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 65572216 is about 8097.6673184319. The cubic root of 65572216 is about 403.2489887304.

The spelling of 65572216 in words is "sixty-five million, five hundred seventy-two thousand, two hundred sixteen".