20539483 has 12 divisors (see below), whose sum is σ = 22018248. Its totient is φ = 19147040.

The previous prime is 20539481. The next prime is 20539489. The reversal of 20539483 is 38493502.

It is a happy number.

It is not a de Polignac number, because 20539483 - 2¹ = 20539481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20539481) 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 11 ways as a sum of consecutive naturals, for example, 21216 + ... + 22162.

It is an arithmetic number, because the mean of its divisors is an integer number (1834854).

Almost surely, 2^20539483 is an apocalyptic number.

20539483 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20539483 is a deficient number, since it is larger than the sum of its proper divisors (1478765).

20539483 is an equidigital number, since it uses as much as digits as its factorization.

20539483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 20539483 is about 4532.0506396112. The cubic root of 20539483 is about 273.8607769452.

The spelling of 20539483 in words is "twenty million, five hundred thirty-nine thousand, four hundred eighty-three".