20895225 has 48 divisors (see below), whose sum is σ = 38539200. Its totient is φ = 9918720.

The previous prime is 20895211. The next prime is 20895239. The reversal of 20895225 is 52259802.

It is an interprime number because it is at equal distance from previous prime (20895211) and next prime (20895239).

It is not a de Polignac number, because 20895225 - 2⁷ = 20895097 is a prime.

It is a super-2 number, since 2×20895225² = 873220855601250, which contains 22 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 27906 + ... + 28644.

It is an arithmetic number, because the mean of its divisors is an integer number (802900).

Almost surely, 2^20895225 is an apocalyptic number.

20895225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20895225 is a deficient number, since it is larger than the sum of its proper divisors (17643975).

20895225 is a wasteful number, since it uses less digits than its factorization.

20895225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 20895225 is about 4571.1295103071. The cubic root of 20895225 is about 275.4328170630.

The spelling of 20895225 in words is "twenty million, eight hundred ninety-five thousand, two hundred twenty-five".