65375231 has 4 divisors (see below), whose sum is σ = 65419464. Its totient is φ = 65331000.

The previous prime is 65375213. The next prime is 65375237. The reversal of 65375231 is 13257356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65375231 is a prime.

It is a super-2 number, since 2×65375231² = 8547841656606722, 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 (65375237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19820 + ... + 22881.

It is an arithmetic number, because the mean of its divisors is an integer number (16354866).

Almost surely, 2^65375231 is an apocalyptic number.

65375231 is a deficient number, since it is larger than the sum of its proper divisors (44233).

65375231 is a wasteful number, since it uses less digits than its factorization.

65375231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44232.

The product of its digits is 18900, while the sum is 32.

The square root of 65375231 is about 8085.4950992503. The cubic root of 65375231 is about 402.8447846214.

The spelling of 65375231 in words is "sixty-five million, three hundred seventy-five thousand, two hundred thirty-one".