20539353 has 8 divisors (see below), whose sum is σ = 27761248. Its totient is φ = 13505184.

The previous prime is 20539307. The next prime is 20539357. The reversal of 20539353 is 35393502.

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

It is not a de Polignac number, because 20539353 - 2⁹ = 20538841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20539353.

It is not an unprimeable number, because it can be changed into a prime (20539357) 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, 46675 + ... + 47112.

It is an arithmetic number, because the mean of its divisors is an integer number (3470156).

Almost surely, 2^20539353 is an apocalyptic number.

It is an amenable number.

20539353 is a deficient number, since it is larger than the sum of its proper divisors (7221895).

20539353 is an equidigital number, since it uses as much as digits as its factorization.

20539353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93863.

The product of its (nonzero) digits is 12150, while the sum is 30.

The square root of 20539353 is about 4532.0362972951. The cubic root of 20539353 is about 273.8601991641.

It can be divided in two parts, 2053935 and 3, that multiplied together give a triangular number (6161805 = T₃₅₁₀).

The spelling of 20539353 in words is "twenty million, five hundred thirty-nine thousand, three hundred fifty-three".