5445311561 has 2 divisors, whose sum is σ = 5445311562. Its totient is φ = 5445311560.

The previous prime is 5445311549. The next prime is 5445311587. The reversal of 5445311561 is 1651135445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4891603600 + 553707961 = 69940^2 + 23531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5445311561 is a prime.

It is not a weakly prime, because it can be changed into another prime (5445311591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2722655780 + 2722655781.

It is an arithmetic number, because the mean of its divisors is an integer number (2722655781).

Almost surely, 2^5445311561 is an apocalyptic number.

It is an amenable number.

5445311561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5445311561 is an equidigital number, since it uses as much as digits as its factorization.

5445311561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

The square root of 5445311561 is about 73792.3543532797. The cubic root of 5445311561 is about 1759.3040853400.

The spelling of 5445311561 in words is "five billion, four hundred forty-five million, three hundred eleven thousand, five hundred sixty-one".