20228325 has 24 divisors (see below), whose sum is σ = 36018528. Its totient is φ = 9958080.

The previous prime is 20228323. The next prime is 20228333. The reversal of 20228325 is 52382202.

It is not a de Polignac number, because 20228325 - 2¹ = 20228323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20228295 and 20228304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20228321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9399 + ... + 11348.

It is an arithmetic number, because the mean of its divisors is an integer number (1500772).

Almost surely, 2^20228325 is an apocalyptic number.

20228325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20228325 is a deficient number, since it is larger than the sum of its proper divisors (15790203).

20228325 is a wasteful number, since it uses less digits than its factorization.

20228325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20773 (or 20768 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20228325 is about 4497.5910218694. The cubic root of 20228325 is about 272.4708046044.

The spelling of 20228325 in words is "twenty million, two hundred twenty-eight thousand, three hundred twenty-five".