65553792 has 64 divisors (see below), whose sum is σ = 177467760. Its totient is φ = 21432320.

The previous prime is 65553757. The next prime is 65553821. The reversal of 65553792 is 29735556.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18742 + ... + 21962.

Almost surely, 2^65553792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65553792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88733880).

65553792 is an abundant number, since it is smaller than the sum of its proper divisors (111913968).

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

65553792 is a wasteful number, since it uses less digits than its factorization.

65553792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291 (or 3279 counting only the distinct ones).

The product of its digits is 283500, while the sum is 42.

The square root of 65553792 is about 8096.5296269451. The cubic root of 65553792 is about 403.2112178789.

The spelling of 65553792 in words is "sixty-five million, five hundred fifty-three thousand, seven hundred ninety-two".