20253225 has 48 divisors (see below), whose sum is σ = 35712000. Its totient is φ = 10105920.

The previous prime is 20253209. The next prime is 20253241. The reversal of 20253225 is 52235202.

It is an interprime number because it is at equal distance from previous prime (20253209) and next prime (20253241).

It is not a de Polignac number, because 20253225 - 2⁴ = 20253209 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101676 + ... + 101874.

It is an arithmetic number, because the mean of its divisors is an integer number (744000).

Almost surely, 2^20253225 is an apocalyptic number.

20253225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20253225 is a deficient number, since it is larger than the sum of its proper divisors (15458775).

20253225 is a wasteful number, since it uses less digits than its factorization.

20253225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 20253225 is about 4500.3583190675. The cubic root of 20253225 is about 272.5825578207.

Adding to 20253225 its reverse (52235202), we get a palindrome (72488427).

The spelling of 20253225 in words is "twenty million, two hundred fifty-three thousand, two hundred twenty-five".