550511155541 has 2 divisors, whose sum is σ = 550511155542. Its totient is φ = 550511155540.

The previous prime is 550511155531. The next prime is 550511155553. The reversal of 550511155541 is 145551115055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335535196516 + 214975959025 = 579254^2 + 463655^2 .

It is a cyclic number.

It is not a de Polignac number, because 550511155541 - 2¹⁸ = 550510893397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 550511155495 and 550511155504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550511155531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275255577770 + 275255577771.

It is an arithmetic number, because the mean of its divisors is an integer number (275255577771).

Almost surely, 2^550511155541 is an apocalyptic number.

It is an amenable number.

550511155541 is a deficient number, since it is larger than the sum of its proper divisors (1).

550511155541 is an equidigital number, since it uses as much as digits as its factorization.

550511155541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62500, while the sum is 38.

The spelling of 550511155541 in words is "five hundred fifty billion, five hundred eleven million, one hundred fifty-five thousand, five hundred forty-one".