65995552 has 36 divisors (see below), whose sum is σ = 151145190. Its totient is φ = 28283136.

The previous prime is 65995537. The next prime is 65995597. The reversal of 65995552 is 25559956.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 35569296 + 30426256 = 5964^2 + 5516^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19477 + ... + 22612.

Almost surely, 2^65995552 is an apocalyptic number.

It is an amenable number.

65995552 is an abundant number, since it is smaller than the sum of its proper divisors (85149638).

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

65995552 is a wasteful number, since it uses less digits than its factorization.

65995552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42113 (or 42098 counting only the distinct ones).

The product of its digits is 607500, while the sum is 46.

The square root of 65995552 is about 8123.7646445475. The cubic root of 65995552 is about 404.1149233554.

The spelling of 65995552 in words is "sixty-five million, nine hundred ninety-five thousand, five hundred fifty-two".