65331552 has 96 divisors (see below), whose sum is σ = 201519360. Its totient is φ = 18270720.

The previous prime is 65331533. The next prime is 65331559. The reversal of 65331552 is 25513356.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65331559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11349 + ... + 16107.

It is an arithmetic number, because the mean of its divisors is an integer number (2099160).

Almost surely, 2^65331552 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 65331552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100759680).

65331552 is an abundant number, since it is smaller than the sum of its proper divisors (136187808).

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

65331552 is a wasteful number, since it uses less digits than its factorization.

65331552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4796 (or 4788 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 65331552 is about 8082.7935764808. The cubic root of 65331552 is about 402.7550473856.

The spelling of 65331552 in words is "sixty-five million, three hundred thirty-one thousand, five hundred fifty-two".