550261865537 has 2 divisors, whose sum is σ = 550261865538. Its totient is φ = 550261865536.

The previous prime is 550261865519. The next prime is 550261865539. The reversal of 550261865537 is 735568162055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 532251957136 + 18009908401 = 729556^2 + 134201^2 .

It is a cyclic number.

It is not a de Polignac number, because 550261865537 - 2¹⁰ = 550261864513 is a prime.

Together with 550261865539, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (550261865539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275130932768 + 275130932769.

It is an arithmetic number, because the mean of its divisors is an integer number (275130932769).

Almost surely, 2^550261865537 is an apocalyptic number.

It is an amenable number.

550261865537 is a deficient number, since it is larger than the sum of its proper divisors (1).

550261865537 is an equidigital number, since it uses as much as digits as its factorization.

550261865537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560000, while the sum is 53.

The spelling of 550261865537 in words is "five hundred fifty billion, two hundred sixty-one million, eight hundred sixty-five thousand, five hundred thirty-seven".