20075505 has 8 divisors (see below), whose sum is σ = 32120832. Its totient is φ = 10706928.

The previous prime is 20075501. The next prime is 20075509. The reversal of 20075505 is 50557002.

It is an interprime number because it is at equal distance from previous prime (20075501) and next prime (20075509).

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

It is not a de Polignac number, because 20075505 - 2² = 20075501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20075501) 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 7 ways as a sum of consecutive naturals, for example, 669169 + ... + 669198.

It is an arithmetic number, because the mean of its divisors is an integer number (4015104).

Almost surely, 2^20075505 is an apocalyptic number.

It is an amenable number.

20075505 is a deficient number, since it is larger than the sum of its proper divisors (12045327).

20075505 is a wasteful number, since it uses less digits than its factorization.

20075505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338375.

The product of its (nonzero) digits is 1750, while the sum is 24.

The square root of 20075505 is about 4480.5697182390. The cubic root of 20075505 is about 271.7829195371.

The spelling of 20075505 in words is "twenty million, seventy-five thousand, five hundred five".