5545124861 has 2 divisors, whose sum is σ = 5545124862. Its totient is φ = 5545124860.

The previous prime is 5545124791. The next prime is 5545124891. The reversal of 5545124861 is 1684215455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5206344025 + 338780836 = 72155^2 + 18406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5545124861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5545124891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2772562430 + 2772562431.

It is an arithmetic number, because the mean of its divisors is an integer number (2772562431).

Almost surely, 2^5545124861 is an apocalyptic number.

It is an amenable number.

5545124861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5545124861 is an equidigital number, since it uses as much as digits as its factorization.

5545124861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192000, while the sum is 41.

The square root of 5545124861 is about 74465.5951497066. The cubic root of 5545124861 is about 1769.9884941851.

The spelling of 5545124861 in words is "five billion, five hundred forty-five million, one hundred twenty-four thousand, eight hundred sixty-one".