20025423 has 12 divisors (see below), whose sum is σ = 31555368. Its totient is φ = 12136560.

The previous prime is 20025419. The next prime is 20025443. The reversal of 20025423 is 32452002.

It is not a de Polignac number, because 20025423 - 2² = 20025419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20025396 and 20025405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101040 + ... + 101237.

It is an arithmetic number, because the mean of its divisors is an integer number (2629614).

Almost surely, 2^20025423 is an apocalyptic number.

20025423 is a deficient number, since it is larger than the sum of its proper divisors (11529945).

20025423 is a wasteful number, since it uses less digits than its factorization.

20025423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202294 (or 202291 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20025423 is about 4474.9774301107. The cubic root of 20025423 is about 271.5567273588.

Adding to 20025423 its reverse (32452002), we get a palindrome (52477425).

The spelling of 20025423 in words is "twenty million, twenty-five thousand, four hundred twenty-three".