20532273 has 4 divisors (see below), whose sum is σ = 27376368. Its totient is φ = 13688180.

The previous prime is 20532271. The next prime is 20532289. The reversal of 20532273 is 37223502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20532273 - 2¹ = 20532271 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20532271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3422043 + ... + 3422048.

It is an arithmetic number, because the mean of its divisors is an integer number (6844092).

Almost surely, 2^20532273 is an apocalyptic number.

It is an amenable number.

20532273 is a deficient number, since it is larger than the sum of its proper divisors (6844095).

20532273 is an equidigital number, since it uses as much as digits as its factorization.

20532273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844094.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 20532273 is about 4531.2551241350. The cubic root of 20532273 is about 273.8287286331.

Adding to 20532273 its reverse (37223502), we get a palindrome (57755775).

The spelling of 20532273 in words is "twenty million, five hundred thirty-two thousand, two hundred seventy-three".