20452763 has 4 divisors (see below), whose sum is σ = 20799480. Its totient is φ = 20106048.

The previous prime is 20452739. The next prime is 20452769. The reversal of 20452763 is 36725402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20452763 - 2⁶ = 20452699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20452769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173270 + ... + 173387.

It is an arithmetic number, because the mean of its divisors is an integer number (5199870).

Almost surely, 2^20452763 is an apocalyptic number.

20452763 is a deficient number, since it is larger than the sum of its proper divisors (346717).

20452763 is an equidigital number, since it uses as much as digits as its factorization.

20452763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346716.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 20452763 is about 4522.4731066088. The cubic root of 20452763 is about 273.4748096007.

The spelling of 20452763 in words is "twenty million, four hundred fifty-two thousand, seven hundred sixty-three".