20195275 has 12 divisors (see below), whose sum is σ = 25156872. Its totient is φ = 16082240.

The previous prime is 20195267. The next prime is 20195297. The reversal of 20195275 is 57259102.

It is not a de Polignac number, because 20195275 - 2³ = 20195267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 4092 + ... + 7558.

It is an arithmetic number, because the mean of its divisors is an integer number (2096406).

Almost surely, 2^20195275 is an apocalyptic number.

20195275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20195275 is a deficient number, since it is larger than the sum of its proper divisors (4961597).

20195275 is a wasteful number, since it uses less digits than its factorization.

20195275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710 (or 3705 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 20195275 is about 4493.9153307556. The cubic root of 20195275 is about 272.3223317921.

The spelling of 20195275 in words is "twenty million, one hundred ninety-five thousand, two hundred seventy-five".