550122125450 has 24 divisors (see below), whose sum is σ = 1037638810080. Its totient is φ = 216949569200.

The previous prime is 550122125411. The next prime is 550122125477. The reversal of 550122125450 is 54521221055.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77478440 + ... + 77485539.

It is an arithmetic number, because the mean of its divisors is an integer number (43234950420).

Almost surely, 2^550122125450 is an apocalyptic number.

550122125450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550122125450 is a deficient number, since it is larger than the sum of its proper divisors (487516684630).

550122125450 is a wasteful number, since it uses less digits than its factorization.

550122125450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154964062 (or 154964057 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 550122125450 in words is "five hundred fifty billion, one hundred twenty-two million, one hundred twenty-five thousand, four hundred fifty".