20025263 has 4 divisors (see below), whose sum is σ = 20353608. Its totient is φ = 19696920.

The previous prime is 20025253. The next prime is 20025277. The reversal of 20025263 is 36252002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20025263 - 2⁶ = 20025199 is a prime.

It is a super-2 number, since 2×20025263² = 802022316438338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164081 + ... + 164202.

It is an arithmetic number, because the mean of its divisors is an integer number (5088402).

Almost surely, 2^20025263 is an apocalyptic number.

20025263 is a deficient number, since it is larger than the sum of its proper divisors (328345).

20025263 is an equidigital number, since it uses as much as digits as its factorization.

20025263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328344.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 20025263 is about 4474.9595528898. The cubic root of 20025263 is about 271.5560041249.

Adding to 20025263 its reverse (36252002), we get a palindrome (56277265).

The spelling of 20025263 in words is "twenty million, twenty-five thousand, two hundred sixty-three".