22520615543 has 2 divisors, whose sum is σ = 22520615544. Its totient is φ = 22520615542.

The previous prime is 22520615519. The next prime is 22520615567. The reversal of 22520615543 is 34551602522.

It is a balanced prime because it is at equal distance from previous prime (22520615519) and next prime (22520615567).

It is a cyclic number.

It is not a de Polignac number, because 22520615543 - 2¹⁸ = 22520353399 is a prime.

It is a super-2 number, since 2×22520615543² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22520615503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260307771 + 11260307772.

It is an arithmetic number, because the mean of its divisors is an integer number (11260307772).

Almost surely, 2^22520615543 is an apocalyptic number.

22520615543 is a deficient number, since it is larger than the sum of its proper divisors (1).

22520615543 is an equidigital number, since it uses as much as digits as its factorization.

22520615543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 22520615543 in words is "twenty-two billion, five hundred twenty million, six hundred fifteen thousand, five hundred forty-three".