550672155521 has 8 divisors (see below), whose sum is σ = 556131623424. Its totient is φ = 545214863520.

The previous prime is 550672155491. The next prime is 550672155533. The reversal of 550672155521 is 125551276055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550672155521 - 2³⁴ = 533492286337 is a prime.

It is a super-2 number, since 2×550672155521² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550672152521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32945 + ... + 1049966.

It is an arithmetic number, because the mean of its divisors is an integer number (69516452928).

Almost surely, 2^550672155521 is an apocalyptic number.

It is an amenable number.

550672155521 is a deficient number, since it is larger than the sum of its proper divisors (5459467903).

550672155521 is a wasteful number, since it uses less digits than its factorization.

550672155521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087951.

The product of its (nonzero) digits is 525000, while the sum is 44.

The spelling of 550672155521 in words is "five hundred fifty billion, six hundred seventy-two million, one hundred fifty-five thousand, five hundred twenty-one".