550453220075256 has 128 divisors (see below), whose sum is σ = 1491024814560000. Its totient is φ = 168752614367232.

The previous prime is 550453220075191. The next prime is 550453220075257. The reversal of 550453220075256 is 652570022354055.

It is a junction number, because it is equal to n+sod(n) for n = 550453220075199 and 550453220075208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550453220075257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28755486 + ... + 43906541.

It is an arithmetic number, because the mean of its divisors is an integer number (11648631363750).

Almost surely, 2^{550453220075256} is an apocalyptic number.

It is an amenable number.

550453220075256 is an abundant number, since it is smaller than the sum of its proper divisors (940571594484744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550453220075256 is a wasteful number, since it uses less digits than its factorization.

550453220075256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72662541 (or 72662537 counting only the distinct ones).

The product of its (nonzero) digits is 12600000, while the sum is 51.

The spelling of 550453220075256 in words is "five hundred fifty trillion, four hundred fifty-three billion, two hundred twenty million, seventy-five thousand, two hundred fifty-six".