65233381 has 4 divisors (see below), whose sum is σ = 66059200. Its totient is φ = 64407564.

The previous prime is 65233379. The next prime is 65233387. The reversal of 65233381 is 18333256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65233381 - 2¹ = 65233379 is a prime.

It is a super-2 number, since 2×65233381² = 8510787993382322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65233387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412791 + ... + 412948.

It is an arithmetic number, because the mean of its divisors is an integer number (16514800).

Almost surely, 2^65233381 is an apocalyptic number.

It is an amenable number.

65233381 is a deficient number, since it is larger than the sum of its proper divisors (825819).

65233381 is an equidigital number, since it uses as much as digits as its factorization.

65233381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825818.

The product of its digits is 12960, while the sum is 31.

The square root of 65233381 is about 8076.7184549172. The cubic root of 65233381 is about 402.5532118479.

The spelling of 65233381 in words is "sixty-five million, two hundred thirty-three thousand, three hundred eighty-one".