550547676121 has 9 divisors (see below), whose sum is σ = 562546319349. Its totient is φ = 538799764284.

The previous prime is 550547676023. The next prime is 550547676137. The reversal of 550547676121 is 121676745055.

The square root of 550547676121 is 741989.

It is a perfect power (a square), and thus also a powerful number.

550547676121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550547676121 - 2¹¹ = 550547674073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550547676181) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 34865590 + ... + 34881376.

Almost surely, 2^550547676121 is an apocalyptic number.

550547676121 is the 741989-th square number.

550547676121 is the 370995-th centered octagonal number.

It is an amenable number.

550547676121 is a deficient number, since it is larger than the sum of its proper divisors (11998643228).

550547676121 is an frugal number, since it uses more digits than its factorization.

550547676121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31668 (or 15834 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 49.

Multiplying 550547676121 by its sum of digits (49), we get a square (26976836129929 = 5193923²).

The spelling of 550547676121 in words is "five hundred fifty billion, five hundred forty-seven million, six hundred seventy-six thousand, one hundred twenty-one".