1110506561 has 2 divisors, whose sum is σ = 1110506562. Its totient is φ = 1110506560.

The previous prime is 1110506557. The next prime is 1110506563. The reversal of 1110506561 is 1656050111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1090650625 + 19855936 = 33025^2 + 4456^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110506561 - 2² = 1110506557 is a prime.

Together with 1110506563, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1110506561.

It is not a weakly prime, because it can be changed into another prime (1110506563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555253280 + 555253281.

It is an arithmetic number, because the mean of its divisors is an integer number (555253281).

Almost surely, 2^1110506561 is an apocalyptic number.

It is an amenable number.

1110506561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110506561 is an equidigital number, since it uses as much as digits as its factorization.

1110506561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1110506561 is about 33324.2638478332. The cubic root of 1110506561 is about 1035.5562867963.

Adding to 1110506561 its reverse (1656050111), we get a palindrome (2766556672).

The spelling of 1110506561 in words is "one billion, one hundred ten million, five hundred six thousand, five hundred sixty-one".