20548423 has 8 divisors (see below), whose sum is σ = 23518880. Its totient is φ = 17586720.

The previous prime is 20548417. The next prime is 20548433. The reversal of 20548423 is 32484502.

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 20548423 - 2¹³ = 20540231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20548391 and 20548400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20548433) 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 7 ways as a sum of consecutive naturals, for example, 4033 + ... + 7573.

It is an arithmetic number, because the mean of its divisors is an integer number (2939860).

Almost surely, 2^20548423 is an apocalyptic number.

20548423 is a deficient number, since it is larger than the sum of its proper divisors (2970457).

20548423 is an equidigital number, since it uses as much as digits as its factorization.

20548423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 20548423 is about 4533.0368407945. The cubic root of 20548423 is about 273.9005046608.

The spelling of 20548423 in words is "twenty million, five hundred forty-eight thousand, four hundred twenty-three".