20952955 has 8 divisors (see below), whose sum is σ = 25393104. Its totient is φ = 16596000.

The previous prime is 20952941. The next prime is 20952979. The reversal of 20952955 is 55925902.

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

It is not a de Polignac number, because 20952955 - 2⁵ = 20952923 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20241 + ... + 21250.

It is an arithmetic number, because the mean of its divisors is an integer number (3174138).

Almost surely, 2^20952955 is an apocalyptic number.

20952955 is a deficient number, since it is larger than the sum of its proper divisors (4440149).

20952955 is a wasteful number, since it uses less digits than its factorization.

20952955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41597.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 20952955 is about 4577.4397866056. The cubic root of 20952955 is about 275.6862420325.

It can be divided in two parts, 2095 and 2955, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 20952955 in words is "twenty million, nine hundred fifty-two thousand, nine hundred fifty-five".