553501110121 has 4 divisors (see below), whose sum is σ = 553926554244. Its totient is φ = 553075666000.

The previous prime is 553501110037. The next prime is 553501110139. The reversal of 553501110121 is 121011105355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10243666521 + 543257443600 = 101211^2 + 737060^2 .

It is a cyclic number.

It is not a de Polignac number, because 553501110121 - 2¹³ = 553501101929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553501114121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212720110 + ... + 212722711.

It is an arithmetic number, because the mean of its divisors is an integer number (138481638561).

Almost surely, 2^553501110121 is an apocalyptic number.

It is an amenable number.

553501110121 is a deficient number, since it is larger than the sum of its proper divisors (425444123).

553501110121 is a wasteful number, since it uses less digits than its factorization.

553501110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425444122.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 553501110121 its reverse (121011105355), we get a palindrome (674512215476).

The spelling of 553501110121 in words is "five hundred fifty-three billion, five hundred one million, one hundred ten thousand, one hundred twenty-one".