20235065 has 4 divisors (see below), whose sum is σ = 24282084. Its totient is φ = 16188048.

The previous prime is 20235043. The next prime is 20235077. The reversal of 20235065 is 56053202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56053202 = 2 ⋅28026601.

It can be written as a sum of positive squares in 2 ways, for example, as 2027776 + 18207289 = 1424^2 + 4267^2 .

It is a cyclic number.

It is not a de Polignac number, because 20235065 - 2²⁴ = 3457849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20235065.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2023502 + ... + 2023511.

It is an arithmetic number, because the mean of its divisors is an integer number (6070521).

Almost surely, 2^20235065 is an apocalyptic number.

It is an amenable number.

20235065 is a deficient number, since it is larger than the sum of its proper divisors (4047019).

20235065 is an equidigital number, since it uses as much as digits as its factorization.

20235065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047018.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 20235065 is about 4498.3402494698. The cubic root of 20235065 is about 272.5010633182.

Adding to 20235065 its reverse (56053202), we get a palindrome (76288267).

The spelling of 20235065 in words is "twenty million, two hundred thirty-five thousand, sixty-five".