20536043 has 8 divisors (see below), whose sum is σ = 23126016. Its totient is φ = 18066600.

The previous prime is 20536013. The next prime is 20536057. The reversal of 20536043 is 34063502.

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 20536043 - 2¹² = 20531947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20536013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29771 + ... + 30452.

It is an arithmetic number, because the mean of its divisors is an integer number (2890752).

Almost surely, 2^20536043 is an apocalyptic number.

20536043 is a deficient number, since it is larger than the sum of its proper divisors (2589973).

20536043 is a wasteful number, since it uses less digits than its factorization.

20536043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60265.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 20536043 is about 4531.6711045706. The cubic root of 20536043 is about 273.8454871467.

Adding to 20536043 its reverse (34063502), we get a palindrome (54599545).

The spelling of 20536043 in words is "twenty million, five hundred thirty-six thousand, forty-three".