550231553601 has 6 divisors (see below), whose sum is σ = 794778910770. Its totient is φ = 366821035728.

The previous prime is 550231553593. The next prime is 550231553633. The reversal of 550231553601 is 106355132055.

550231553601 is a `hidden beast` number, since 550 + 23 + 1 + 55 + 36 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 541955102976 + 8276450625 = 736176^2 + 90975^2 .

It is not a de Polignac number, because 550231553601 - 2³ = 550231553593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550231553671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30568419636 + ... + 30568419653.

It is an arithmetic number, because the mean of its divisors is an integer number (132463151795).

Almost surely, 2^550231553601 is an apocalyptic number.

It is an amenable number.

550231553601 is a deficient number, since it is larger than the sum of its proper divisors (244547357169).

550231553601 is a wasteful number, since it uses less digits than its factorization.

550231553601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61136839295 (or 61136839292 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

Adding to 550231553601 its reverse (106355132055), we get a palindrome (656586685656).

The spelling of 550231553601 in words is "five hundred fifty billion, two hundred thirty-one million, five hundred fifty-three thousand, six hundred one".