20025253 has 2 divisors, whose sum is σ = 20025254. Its totient is φ = 20025252.

The previous prime is 20025241. The next prime is 20025277. The reversal of 20025253 is 35252002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18301284 + 1723969 = 4278^2 + 1313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20025253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20025253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20025293) by changing a digit.

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 as a sum of consecutive naturals, namely, 10012626 + 10012627.

It is an arithmetic number, because the mean of its divisors is an integer number (10012627).

Almost surely, 2^20025253 is an apocalyptic number.

It is an amenable number.

20025253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20025253 is an equidigital number, since it uses as much as digits as its factorization.

20025253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20025253 is about 4474.9584355612. The cubic root of 20025253 is about 271.5559589227. Note that the first 3 decimals are identical.

Adding to 20025253 its reverse (35252002), we get a palindrome (55277255).

The spelling of 20025253 in words is "twenty million, twenty-five thousand, two hundred fifty-three".