20826275 has 12 divisors (see below), whose sum is σ = 27344232. Its totient is φ = 15680640.

The previous prime is 20826271. The next prime is 20826331. The reversal of 20826275 is 57262802.

It is not a de Polignac number, because 20826275 - 2² = 20826271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20826271) 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 11 ways as a sum of consecutive naturals, for example, 24077 + ... + 24926.

It is an arithmetic number, because the mean of its divisors is an integer number (2278686).

Almost surely, 2^20826275 is an apocalyptic number.

20826275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20826275 is a deficient number, since it is larger than the sum of its proper divisors (6517957).

20826275 is a wasteful number, since it uses less digits than its factorization.

20826275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49030 (or 49025 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 20826275 is about 4563.5813786981. The cubic root of 20826275 is about 275.1295257603.

The spelling of 20826275 in words is "twenty million, eight hundred twenty-six thousand, two hundred seventy-five".