20535005 has 8 divisors (see below), whose sum is σ = 25166592. Its totient is φ = 16078288.

The previous prime is 20535001. The next prime is 20535013. The reversal of 20535005 is 50053502.

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 20535005 - 2² = 20535001 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 (20535001) 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, 43457 + ... + 43926.

It is an arithmetic number, because the mean of its divisors is an integer number (3145824).

Almost surely, 2^20535005 is an apocalyptic number.

It is an amenable number.

20535005 is a deficient number, since it is larger than the sum of its proper divisors (4631587).

20535005 is an equidigital number, since it uses as much as digits as its factorization.

20535005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87435.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 20535005 is about 4531.5565758357. The cubic root of 20535005 is about 273.8408732036.

Adding to 20535005 its reverse (50053502), we get a palindrome (70588507).

The spelling of 20535005 in words is "twenty million, five hundred thirty-five thousand, five".