20022502456523 has 4 divisors (see below), whose sum is σ = 22882859950320. Its totient is φ = 17162144962728.

The previous prime is 20022502456513. The next prime is 20022502456553. The reversal of 20022502456523 is 32565420522002.

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 20022502456523 - 2¹⁰ = 20022502455499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022502456513) 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, 1430178746888 + ... + 1430178746901.

It is an arithmetic number, because the mean of its divisors is an integer number (5720714987580).

Almost surely, 2^{20022502456523} is an apocalyptic number.

20022502456523 is a deficient number, since it is larger than the sum of its proper divisors (2860357493797).

20022502456523 is an equidigital number, since it uses as much as digits as its factorization.

20022502456523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860357493796.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 20022502456523 its reverse (32565420522002), we get a palindrome (52587922978525).

The spelling of 20022502456523 in words is "twenty trillion, twenty-two billion, five hundred two million, four hundred fifty-six thousand, five hundred twenty-three".