544040555257 has 2 divisors, whose sum is σ = 544040555258. Its totient is φ = 544040555256.

The previous prime is 544040555213. The next prime is 544040555273. The reversal of 544040555257 is 752555040445.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514750286521 + 29290268736 = 717461^2 + 171144^2 .

It is a cyclic number.

It is not a de Polignac number, because 544040555257 - 2⁷ = 544040555129 is a prime.

It is not a weakly prime, because it can be changed into another prime (544040555657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272020277628 + 272020277629.

It is an arithmetic number, because the mean of its divisors is an integer number (272020277629).

Almost surely, 2^544040555257 is an apocalyptic number.

It is an amenable number.

544040555257 is a deficient number, since it is larger than the sum of its proper divisors (1).

544040555257 is an equidigital number, since it uses as much as digits as its factorization.

544040555257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800000, while the sum is 46.

The spelling of 544040555257 in words is "five hundred forty-four billion, forty million, five hundred fifty-five thousand, two hundred fifty-seven".