553121101 has 8 divisors (see below), whose sum is σ = 600941880. Its totient is φ = 506053632.

The previous prime is 553121087. The next prime is 553121111. The reversal of 553121101 is 101121355.

It can be written as a sum of positive squares in 4 ways, for example, as 117397225 + 435723876 = 10835^2 + 20874^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 553121101 - 2¹³ = 553112909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553121111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186796 + ... + 189733.

It is an arithmetic number, because the mean of its divisors is an integer number (75117735).

Almost surely, 2^553121101 is an apocalyptic number.

It is an amenable number.

553121101 is a deficient number, since it is larger than the sum of its proper divisors (47820779).

553121101 is a wasteful number, since it uses less digits than its factorization.

553121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376655.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 553121101 is about 23518.5267608326. The cubic root of 553121101 is about 820.8681569761.

Adding to 553121101 its reverse (101121355), we get a palindrome (654242456).

The spelling of 553121101 in words is "five hundred fifty-three million, one hundred twenty-one thousand, one hundred one".