20775063 has 8 divisors (see below), whose sum is σ = 28344448. Its totient is φ = 13527864.

The previous prime is 20775061. The next prime is 20775077. The reversal of 20775063 is 36057702.

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

It is not a de Polignac number, because 20775063 - 2¹ = 20775061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20775063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20775061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80395 + ... + 80652.

It is an arithmetic number, because the mean of its divisors is an integer number (3543056).

Almost surely, 2^20775063 is an apocalyptic number.

20775063 is a deficient number, since it is larger than the sum of its proper divisors (7569385).

20775063 is a wasteful number, since it uses less digits than its factorization.

20775063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161093.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 20775063 is about 4557.9669810125. The cubic root of 20775063 is about 274.9038253223.

It can be divided in two parts, 2077 and 5063, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 20775063 in words is "twenty million, seven hundred seventy-five thousand, sixty-three".