550433140033221 has 64 divisors (see below), whose sum is σ = 836614614528000. Its totient is φ = 357480089346240.

The previous prime is 550433140033187. The next prime is 550433140033223. The reversal of 550433140033221 is 122330041334055.

550433140033221 is a `hidden beast` number, since 5 + 5 + 0 + 4 + 3 + 314 + 0 + 0 + 332 + 2 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-550433140033221 is a prime.

It is a super-3 number, since 3×550433140033221³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550433140033223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 892615720 + ... + 893232158.

It is an arithmetic number, because the mean of its divisors is an integer number (13072103352000).

Almost surely, 2^{550433140033221} is an apocalyptic number.

It is an amenable number.

550433140033221 is a deficient number, since it is larger than the sum of its proper divisors (286181474494779).

550433140033221 is a wasteful number, since it uses less digits than its factorization.

550433140033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618511 (or 618505 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 550433140033221 its reverse (122330041334055), we get a palindrome (672763181367276).

The spelling of 550433140033221 in words is "five hundred fifty trillion, four hundred thirty-three billion, one hundred forty million, thirty-three thousand, two hundred twenty-one".