20548455 has 8 divisors (see below), whose sum is σ = 32877552. Its totient is φ = 10959168.

The previous prime is 20548439. The next prime is 20548459. The reversal of 20548455 is 55484502.

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

It is not a de Polignac number, because 20548455 - 2⁴ = 20548439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20548459) 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, 684934 + ... + 684963.

It is an arithmetic number, because the mean of its divisors is an integer number (4109694).

Almost surely, 2^20548455 is an apocalyptic number.

20548455 is a deficient number, since it is larger than the sum of its proper divisors (12329097).

20548455 is a wasteful number, since it uses less digits than its factorization.

20548455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369905.

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 20548455 is about 4533.0403704357. The cubic root of 20548455 is about 273.9006468422.

The spelling of 20548455 in words is "twenty million, five hundred forty-eight thousand, four hundred fifty-five".