3550343121 has 24 divisors (see below), whose sum is σ = 5847627240. Its totient is φ = 2056306176.

The previous prime is 3550343077. The next prime is 3550343123. The reversal of 3550343121 is 1213430553.

3550343121 is a `hidden beast` number, since 35 + 503 + 4 + 3 + 121 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1370480400 + 2179862721 = 37020^2 + 46689^2 .

It is not a de Polignac number, because 3550343121 - 2⁷ = 3550342993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3550343123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 890506 + ... + 894483.

It is an arithmetic number, because the mean of its divisors is an integer number (243651135).

Almost surely, 2^3550343121 is an apocalyptic number.

It is an amenable number.

3550343121 is a deficient number, since it is larger than the sum of its proper divisors (2297284119).

3550343121 is a wasteful number, since it uses less digits than its factorization.

3550343121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785025 (or 1785022 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 3550343121 is about 59584.7557769603. The cubic root of 3550343121 is about 1525.5394484632.

Adding to 3550343121 its reverse (1213430553), we get a palindrome (4763773674).

The spelling of 3550343121 in words is "three billion, five hundred fifty million, three hundred forty-three thousand, one hundred twenty-one".