65508023 has 4 divisors (see below), whose sum is σ = 74866320. Its totient is φ = 56149728.

The previous prime is 65508011. The next prime is 65508031. The reversal of 65508023 is 32080556.

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

It is a cyclic number.

It is not a de Polignac number, because 65508023 - 2¹² = 65503927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65508323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4679138 + ... + 4679151.

It is an arithmetic number, because the mean of its divisors is an integer number (18716580).

Almost surely, 2^65508023 is an apocalyptic number.

65508023 is a deficient number, since it is larger than the sum of its proper divisors (9358297).

65508023 is an equidigital number, since it uses as much as digits as its factorization.

65508023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358296.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 65508023 is about 8093.7026755373. The cubic root of 65508023 is about 403.1173566886.

Adding to 65508023 its reverse (32080556), we get a palindrome (97588579).

The spelling of 65508023 in words is "sixty-five million, five hundred eight thousand, twenty-three".