20525716223 has 4 divisors (see below), whose sum is σ = 20582891280. Its totient is φ = 20468541168.

The previous prime is 20525716217. The next prime is 20525716229. The reversal of 20525716223 is 32261752502.

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

It is an interprime number because it is at equal distance from previous prime (20525716217) and next prime (20525716229).

It is a cyclic number.

It is not a de Polignac number, because 20525716223 - 2¹⁶ = 20525650687 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 (20525716229) 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, 28586990 + ... + 28587707.

It is an arithmetic number, because the mean of its divisors is an integer number (5145722820).

Almost surely, 2^20525716223 is an apocalyptic number.

20525716223 is a deficient number, since it is larger than the sum of its proper divisors (57175057).

20525716223 is an equidigital number, since it uses as much as digits as its factorization.

20525716223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57175056.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 20525716223 in words is "twenty billion, five hundred twenty-five million, seven hundred sixteen thousand, two hundred twenty-three".