20252423 has 8 divisors (see below), whose sum is σ = 22572720. Its totient is φ = 18057600.

The previous prime is 20252381. The next prime is 20252447. The reversal of 20252423 is 32425202.

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

It is not a de Polignac number, because 20252423 - 2⁶ = 20252359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20252395 and 20252404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252473) 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 7 ways as a sum of consecutive naturals, for example, 31028 + ... + 31673.

It is an arithmetic number, because the mean of its divisors is an integer number (2821590).

Almost surely, 2^20252423 is an apocalyptic number.

20252423 is a deficient number, since it is larger than the sum of its proper divisors (2320297).

20252423 is a wasteful number, since it uses less digits than its factorization.

20252423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62737.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20252423 is about 4500.2692141693. The cubic root of 20252423 is about 272.5789598078.

Adding to 20252423 its reverse (32425202), we get a palindrome (52677625).

It can be divided in two parts, 202 and 52423, that added together give a palindrome (52625).

The spelling of 20252423 in words is "twenty million, two hundred fifty-two thousand, four hundred twenty-three".