20605095 has 24 divisors (see below), whose sum is σ = 40818336. Its totient is φ = 9419328.

The previous prime is 20605073. The next prime is 20605099. The reversal of 20605095 is 59050602.

It is not a de Polignac number, because 20605095 - 2¹¹ = 20603047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20605099) 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 23 ways as a sum of consecutive naturals, for example, 32392 + ... + 33021.

It is an arithmetic number, because the mean of its divisors is an integer number (1700764).

Almost surely, 2^20605095 is an apocalyptic number.

20605095 is a deficient number, since it is larger than the sum of its proper divisors (20213241).

20605095 is a wasteful number, since it uses less digits than its factorization.

20605095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65431 (or 65428 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 20605095 is about 4539.2835337749. The cubic root of 20605095 is about 274.1520769432.

Adding to 20605095 its reverse (59050602), we get a palindrome (79655697).

The spelling of 20605095 in words is "twenty million, six hundred five thousand, ninety-five".