20275827 has 32 divisors (see below), whose sum is σ = 32073216. Its totient is φ = 11232000.

The previous prime is 20275819. The next prime is 20275837. The reversal of 20275827 is 72857202.

It is not a de Polignac number, because 20275827 - 2³ = 20275819 is a prime.

It is a super-2 number, since 2×20275827² = 822218321067858, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20275807) 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 31 ways as a sum of consecutive naturals, for example, 64623 + ... + 64935.

It is an arithmetic number, because the mean of its divisors is an integer number (1002288).

Almost surely, 2^20275827 is an apocalyptic number.

20275827 is a deficient number, since it is larger than the sum of its proper divisors (11797389).

20275827 is a wasteful number, since it uses less digits than its factorization.

20275827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 20275827 is about 4502.8687522512. The cubic root of 20275827 is about 272.6839181488.

The spelling of 20275827 in words is "twenty million, two hundred seventy-five thousand, eight hundred twenty-seven".