20960055 has 24 divisors (see below), whose sum is σ = 36447840. Its totient is φ = 11142720.

The previous prime is 20960047. The next prime is 20960057. The reversal of 20960055 is 55006902.

20960055 is a `hidden beast` number, since 2 + 0 + 9 + 600 + 55 = 666.

It is not a de Polignac number, because 20960055 - 2³ = 20960047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20960057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19225 + ... + 20285.

It is an arithmetic number, because the mean of its divisors is an integer number (1518660).

Almost surely, 2^20960055 is an apocalyptic number.

20960055 is a deficient number, since it is larger than the sum of its proper divisors (15487785).

20960055 is a wasteful number, since it uses less digits than its factorization.

20960055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511 (or 1508 counting only the distinct ones).

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

The square root of 20960055 is about 4578.2152636153. The cubic root of 20960055 is about 275.7173776770.

Adding to 20960055 its reverse (55006902), we get a palindrome (75966957).

The spelling of 20960055 in words is "twenty million, nine hundred sixty thousand, fifty-five".