65565472 has 24 divisors (see below), whose sum is σ = 147522816. Its totient is φ = 28099392.

The previous prime is 65565439. The next prime is 65565503. The reversal of 65565472 is 27456556.

It is a super-2 number, since 2×65565472² = 8597662237165568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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, 146128 + ... + 146575.

It is an arithmetic number, because the mean of its divisors is an integer number (6146784).

Almost surely, 2^65565472 is an apocalyptic number.

It is an amenable number.

65565472 is an abundant number, since it is smaller than the sum of its proper divisors (81957344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65565472 is a wasteful number, since it uses less digits than its factorization.

65565472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292720 (or 292712 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 65565472 is about 8097.2508915063. The cubic root of 65565472 is about 403.2351637469.

The spelling of 65565472 in words is "sixty-five million, five hundred sixty-five thousand, four hundred seventy-two".