65445023 has 4 divisors (see below), whose sum is σ = 74794320. Its totient is φ = 56095728.

The previous prime is 65445007. The next prime is 65445043. The reversal of 65445023 is 32054456.

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 65445023 - 2⁴ = 65445007 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 (65445043) 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, 4674638 + ... + 4674651.

It is an arithmetic number, because the mean of its divisors is an integer number (18698580).

Almost surely, 2^65445023 is an apocalyptic number.

65445023 is a deficient number, since it is larger than the sum of its proper divisors (9349297).

65445023 is an equidigital number, since it uses as much as digits as its factorization.

65445023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9349296.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 65445023 is about 8089.8098247116. The cubic root of 65445023 is about 402.9880873359.

Adding to 65445023 its reverse (32054456), we get a palindrome (97499479).

The spelling of 65445023 in words is "sixty-five million, four hundred forty-five thousand, twenty-three".