55235461121 has 4 divisors (see below), whose sum is σ = 55253162244. Its totient is φ = 55217760000.

The previous prime is 55235461109. The next prime is 55235461159. The reversal of 55235461121 is 12116453255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12116453255 = 5 ⋅2423290651.

It can be written as a sum of positive squares in 2 ways, for example, as 11955235600 + 43280225521 = 109340^2 + 208039^2 .

It is a cyclic number.

It is not a de Polignac number, because 55235461121 - 2¹⁰ = 55235460097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55235461921) 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, 8845880 + ... + 8852121.

It is an arithmetic number, because the mean of its divisors is an integer number (13813290561).

Almost surely, 2^55235461121 is an apocalyptic number.

It is an amenable number.

55235461121 is a deficient number, since it is larger than the sum of its proper divisors (17701123).

55235461121 is a wasteful number, since it uses less digits than its factorization.

55235461121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17701122.

The product of its digits is 36000, while the sum is 35.

The spelling of 55235461121 in words is "fifty-five billion, two hundred thirty-five million, four hundred sixty-one thousand, one hundred twenty-one".