23035561 has 8 divisors (see below), whose sum is σ = 24438024. Its totient is φ = 21638400.

The previous prime is 23035559. The next prime is 23035577. The reversal of 23035561 is 16553032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12673600 + 10361961 = 3560^2 + 3219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23035561 - 2¹ = 23035559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23035501) 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 7 ways as a sum of consecutive naturals, for example, 10951 + ... + 12883.

It is an arithmetic number, because the mean of its divisors is an integer number (3054753).

Almost surely, 2^23035561 is an apocalyptic number.

It is an amenable number.

23035561 is a deficient number, since it is larger than the sum of its proper divisors (1402463).

23035561 is a wasteful number, since it uses less digits than its factorization.

23035561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 23035561 is about 4799.5375818927. The cubic root of 23035561 is about 284.5331888228.

Adding to 23035561 its reverse (16553032), we get a palindrome (39588593).

The spelling of 23035561 in words is "twenty-three million, thirty-five thousand, five hundred sixty-one".