2218485547 has 2 divisors, whose sum is σ = 2218485548. Its totient is φ = 2218485546.

The previous prime is 2218485527. The next prime is 2218485551. The reversal of 2218485547 is 7455848122.

2218485547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2218485547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2218485497 and 2218485506.

It is not a weakly prime, because it can be changed into another prime (2218485527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109242773 + 1109242774.

It is an arithmetic number, because the mean of its divisors is an integer number (1109242774).

Almost surely, 2^2218485547 is an apocalyptic number.

2218485547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218485547 is an equidigital number, since it uses as much as digits as its factorization.

2218485547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 716800, while the sum is 46.

The square root of 2218485547 is about 47100.8019783103. The cubic root of 2218485547 is about 1304.2240405934.

The spelling of 2218485547 in words is "two billion, two hundred eighteen million, four hundred eighty-five thousand, five hundred forty-seven".