20225275 has 24 divisors (see below), whose sum is σ = 29283840. Its totient is φ = 13568160.

The previous prime is 20225251. The next prime is 20225281. The reversal of 20225275 is 57252202.

It is not a de Polignac number, because 20225275 - 2⁵ = 20225243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6996 + ... + 9454.

It is an arithmetic number, because the mean of its divisors is an integer number (1220160).

Almost surely, 2^20225275 is an apocalyptic number.

20225275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20225275 is a deficient number, since it is larger than the sum of its proper divisors (9058565).

20225275 is a wasteful number, since it uses less digits than its factorization.

20225275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523 (or 2518 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 20225275 is about 4497.2519386843. The cubic root of 20225275 is about 272.4571096539.

Adding to 20225275 its reverse (57252202), we get a palindrome (77477477).

The spelling of 20225275 in words is "twenty million, two hundred twenty-five thousand, two hundred seventy-five".