20480353 has 2 divisors, whose sum is σ = 20480354. Its totient is φ = 20480352.

The previous prime is 20480329. The next prime is 20480363. The reversal of 20480353 is 35308402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14190289 + 6290064 = 3767^2 + 2508^2 .

It is a cyclic number.

It is not a de Polignac number, because 20480353 - 2⁵ = 20480321 is a prime.

It is not a weakly prime, because it can be changed into another prime (20480363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10240176 + 10240177.

It is an arithmetic number, because the mean of its divisors is an integer number (10240177).

Almost surely, 2^20480353 is an apocalyptic number.

It is an amenable number.

20480353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20480353 is an equidigital number, since it uses as much as digits as its factorization.

20480353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20480353 is about 4525.5224007842. The cubic root of 20480353 is about 273.5977233903.

Adding to 20480353 its reverse (35308402), we get a palindrome (55788755).

The spelling of 20480353 in words is "twenty million, four hundred eighty thousand, three hundred fifty-three".