55301121 has 12 divisors (see below), whose sum is σ = 79994772. Its totient is φ = 36814176.

The previous prime is 55301047. The next prime is 55301123. The reversal of 55301121 is 12110355.

55301121 is a `hidden beast` number, since 553 + 0 + 112 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43086096 + 12215025 = 6564^2 + 3495^2 .

It is not a de Polignac number, because 55301121 - 2¹³ = 55292929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55301094 and 55301103.

It is not an unprimeable number, because it can be changed into a prime (55301123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2755 + ... + 10871.

It is an arithmetic number, because the mean of its divisors is an integer number (6666231).

Almost surely, 2^55301121 is an apocalyptic number.

It is an amenable number.

55301121 is a deficient number, since it is larger than the sum of its proper divisors (24693651).

55301121 is a wasteful number, since it uses less digits than its factorization.

55301121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8880 (or 8877 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 55301121 is about 7436.4723491720. The cubic root of 55301121 is about 380.9880129322.

Adding to 55301121 its reverse (12110355), we get a palindrome (67411476).

The spelling of 55301121 in words is "fifty-five million, three hundred one thousand, one hundred twenty-one".