65610023 has 4 divisors (see below), whose sum is σ = 65718720. Its totient is φ = 65501328.

The previous prime is 65610011. The next prime is 65610029. The reversal of 65610023 is 32001656.

65610023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65610023 - 2⁸ = 65609767 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 (65610029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53438 + ... + 54651.

It is an arithmetic number, because the mean of its divisors is an integer number (16429680).

Almost surely, 2^65610023 is an apocalyptic number.

65610023 is a deficient number, since it is larger than the sum of its proper divisors (108697).

65610023 is a wasteful number, since it uses less digits than its factorization.

65610023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108696.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 65610023 is about 8100.0014197530. The cubic root of 65610023 is about 403.3264743197.

Subtracting from 65610023 its sum of digits (23), we obtain a 4-th power (65610000 = 90⁴).

Adding to 65610023 its reverse (32001656), we get a palindrome (97611679).

The spelling of 65610023 in words is "sixty-five million, six hundred ten thousand, twenty-three".