65191952 has 50 divisors (see below), whose sum is σ = 147439038. Its totient is φ = 27922944.

The previous prime is 65191943. The next prime is 65191967. The reversal of 65191952 is 25919156.

It can be written as a sum of positive squares in only one way, i.e., 64577296 + 614656 = 8036^2 + 784^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 37568 + ... + 39264.

Almost surely, 2^65191952 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 65191952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73719519).

65191952 is an abundant number, since it is smaller than the sum of its proper divisors (82247086).

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

65191952 is an equidigital number, since it uses as much as digits as its factorization.

65191952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733 (or 1706 counting only the distinct ones).

The product of its digits is 24300, while the sum is 38.

The square root of 65191952 is about 8074.1533302260. The cubic root of 65191952 is about 402.4679747676.

The spelling of 65191952 in words is "sixty-five million, one hundred ninety-one thousand, nine hundred fifty-two".