20525422 has 8 divisors (see below), whose sum is σ = 31093272. Its totient is φ = 10161000.

The previous prime is 20525419. The next prime is 20525429. The reversal of 20525422 is 22452502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20525393 and 20525402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525429) 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 in 3 ways as a sum of consecutive naturals, for example, 50604 + ... + 51007.

It is an arithmetic number, because the mean of its divisors is an integer number (3886659).

Almost surely, 2^20525422 is an apocalyptic number.

20525422 is a deficient number, since it is larger than the sum of its proper divisors (10567850).

20525422 is a wasteful number, since it uses less digits than its factorization.

20525422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101714.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20525422 is about 4530.4990895044. The cubic root of 20525422 is about 273.7982691168.

Adding to 20525422 its reverse (22452502), we get a palindrome (42977924).

The spelling of 20525422 in words is "twenty million, five hundred twenty-five thousand, four hundred twenty-two".