550332253521 has 12 divisors (see below), whose sum is σ = 794955627648. Its totient is φ = 366873740664.

The previous prime is 550332253507. The next prime is 550332253553. The reversal of 550332253521 is 125352233055.

550332253521 is a `hidden beast` number, since 5 + 50 + 3 + 32 + 2 + 53 + 521 = 666.

It is not a de Polignac number, because 550332253521 - 2²² = 550328059217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550332253021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 958185 + ... + 1420838.

It is an arithmetic number, because the mean of its divisors is an integer number (66246302304).

Almost surely, 2^550332253521 is an apocalyptic number.

It is an amenable number.

550332253521 is a deficient number, since it is larger than the sum of its proper divisors (244623374127).

550332253521 is a wasteful number, since it uses less digits than its factorization.

550332253521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404732 (or 2404729 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

Adding to 550332253521 its reverse (125352233055), we get a palindrome (675684486576).

The spelling of 550332253521 in words is "five hundred fifty billion, three hundred thirty-two million, two hundred fifty-three thousand, five hundred twenty-one".