20548245 has 8 divisors (see below), whose sum is σ = 32877216. Its totient is φ = 10959056.

The previous prime is 20548237. The next prime is 20548247. The reversal of 20548245 is 54284502.

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 20548245 - 2³ = 20548237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20548247) 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, 684927 + ... + 684956.

It is an arithmetic number, because the mean of its divisors is an integer number (4109652).

Almost surely, 2^20548245 is an apocalyptic number.

It is an amenable number.

20548245 is a deficient number, since it is larger than the sum of its proper divisors (12328971).

20548245 is a wasteful number, since it uses less digits than its factorization.

20548245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369891.

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 20548245 is about 4533.0172071149. The cubic root of 20548245 is about 273.8997137740.

The spelling of 20548245 in words is "twenty million, five hundred forty-eight thousand, two hundred forty-five".