20946055 has 8 divisors (see below), whose sum is σ = 27068832. Its totient is φ = 15467808.

The previous prime is 20946053. The next prime is 20946059. The reversal of 20946055 is 55064902.

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 20946055 - 2¹ = 20946053 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 (20946053) 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, 161059 + ... + 161188.

It is an arithmetic number, because the mean of its divisors is an integer number (3383604).

Almost surely, 2^20946055 is an apocalyptic number.

20946055 is a deficient number, since it is larger than the sum of its proper divisors (6122777).

20946055 is a wasteful number, since it uses less digits than its factorization.

20946055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322265.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 20946055 is about 4576.6860281212. The cubic root of 20946055 is about 275.6559767085.

It can be divided in two parts, 209 and 46055, that added together give a palindrome (46264).

The spelling of 20946055 in words is "twenty million, nine hundred forty-six thousand, fifty-five".