20552123 has 8 divisors (see below), whose sum is σ = 20832000. Its totient is φ = 20274408.

The previous prime is 20552117. The next prime is 20552137. The reversal of 20552123 is 32125502.

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

It is a cyclic number.

It is not a de Polignac number, because 20552123 - 2¹² = 20548027 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20552095 and 20552104.

It is not an unprimeable number, because it can be changed into a prime (20552143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27290 + ... + 28032.

It is an arithmetic number, because the mean of its divisors is an integer number (2604000).

Almost surely, 2^20552123 is an apocalyptic number.

20552123 is a deficient number, since it is larger than the sum of its proper divisors (279877).

20552123 is a wasteful number, since it uses less digits than its factorization.

20552123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 20552123 is about 4533.4449373517. Note that the first 3 decimals coincide. The cubic root of 20552123 is about 273.9169434089.

Adding to 20552123 its reverse (32125502), we get a palindrome (52677625).

The spelling of 20552123 in words is "twenty million, five hundred fifty-two thousand, one hundred twenty-three".