65549952 has 128 divisors (see below), whose sum is σ = 208488000. Its totient is φ = 20155392.

The previous prime is 65549951. The next prime is 65549983. The reversal of 65549952 is 25994556.

It is a happy number.

65549952 is a `hidden beast` number, since 6 + 554 + 9 + 95 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 65549898 and 65549907.

It is not an unprimeable number, because it can be changed into a prime (65549951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44199 + ... + 45657.

Almost surely, 2^65549952 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 65549952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104244000).

65549952 is an abundant number, since it is smaller than the sum of its proper divisors (142938048).

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

65549952 is a wasteful number, since it uses less digits than its factorization.

65549952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1477 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 65549952 is about 8096.2924848353. The cubic root of 65549952 is about 403.2033446435.

The spelling of 65549952 in words is "sixty-five million, five hundred forty-nine thousand, nine hundred fifty-two".