22520042827 has 4 divisors (see below), whose sum is σ = 22527525096. Its totient is φ = 22512560560.

The previous prime is 22520042813. The next prime is 22520042843. The reversal of 22520042827 is 72824002522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22520042827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22520042792 and 22520042801.

It is not an unprimeable number, because it can be changed into a prime (22520043827) 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, 3736618 + ... + 3742639.

It is an arithmetic number, because the mean of its divisors is an integer number (5631881274).

Almost surely, 2^22520042827 is an apocalyptic number.

22520042827 is a deficient number, since it is larger than the sum of its proper divisors (7482269).

22520042827 is an equidigital number, since it uses as much as digits as its factorization.

22520042827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7482268.

The product of its (nonzero) digits is 35840, while the sum is 34.

The spelling of 22520042827 in words is "twenty-two billion, five hundred twenty million, forty-two thousand, eight hundred twenty-seven".