550226631565 has 48 divisors (see below), whose sum is σ = 762109722000. Its totient is φ = 379851902976.

The previous prime is 550226631553. The next prime is 550226631569. The reversal of 550226631565 is 565136622055.

It is a happy number.

It can be written as a sum of positive squares in 24 ways, for example, as 541064696041 + 9161935524 = 735571^2 + 95718^2 .

It is not a de Polignac number, because 550226631565 - 2⁵ = 550226631533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550226631569) 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 in 47 ways as a sum of consecutive naturals, for example, 2011851 + ... + 2268919.

It is an arithmetic number, because the mean of its divisors is an integer number (15877285875).

Almost surely, 2^550226631565 is an apocalyptic number.

It is an amenable number.

550226631565 is a deficient number, since it is larger than the sum of its proper divisors (211883090435).

550226631565 is a wasteful number, since it uses less digits than its factorization.

550226631565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257266 (or 257253 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 550226631565 in words is "five hundred fifty billion, two hundred twenty-six million, six hundred thirty-one thousand, five hundred sixty-five".