20552303 has 8 divisors (see below), whose sum is σ = 22119120. Its totient is φ = 19025280.

The previous prime is 20552291. The next prime is 20552333. The reversal of 20552303 is 30325502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20552303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552333) 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, 8873 + ... + 10946.

It is an arithmetic number, because the mean of its divisors is an integer number (2764890).

Almost surely, 2^20552303 is an apocalyptic number.

20552303 is a deficient number, since it is larger than the sum of its proper divisors (1566817).

20552303 is a wasteful number, since it uses less digits than its factorization.

20552303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19897.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 20552303 is about 4533.4647897607. The cubic root of 20552303 is about 273.9177430814.

Adding to 20552303 its reverse (30325502), we get a palindrome (50877805).

The spelling of 20552303 in words is "twenty million, five hundred fifty-two thousand, three hundred three".