65381033 has 8 divisors (see below), whose sum is σ = 69033120. Its totient is φ = 61750080.

The previous prime is 65380979. The next prime is 65381047. The reversal of 65381033 is 33018356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65381033 - 2¹⁰ = 65380009 is a prime.

It is a super-2 number, since 2×65381033² = 8549358952294178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65380987 and 65381005.

It is not an unprimeable number, because it can be changed into a prime (65381053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1298 + ... + 11508.

It is an arithmetic number, because the mean of its divisors is an integer number (8629140).

Almost surely, 2^65381033 is an apocalyptic number.

It is an amenable number.

65381033 is a deficient number, since it is larger than the sum of its proper divisors (3652087).

65381033 is a wasteful number, since it uses less digits than its factorization.

65381033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10567.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 65381033 is about 8085.8538819348. The cubic root of 65381033 is about 402.8567016541.

Adding to 65381033 its reverse (33018356), we get a palindrome (98399389).

The spelling of 65381033 in words is "sixty-five million, three hundred eighty-one thousand, thirty-three".