55481441 has 4 divisors (see below), whose sum is σ = 55659012. Its totient is φ = 55303872.

The previous prime is 55481429. The next prime is 55481449. The reversal of 55481441 is 14418455.

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 29430625 + 26050816 = 5425^2 + 5104^2 .

It is a cyclic number.

It is not a de Polignac number, because 55481441 - 2¹⁰ = 55480417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55481398 and 55481407.

It is not an unprimeable number, because it can be changed into a prime (55481449) 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, 88316 + ... + 88941.

It is an arithmetic number, because the mean of its divisors is an integer number (13914753).

Almost surely, 2^55481441 is an apocalyptic number.

It is an amenable number.

55481441 is a deficient number, since it is larger than the sum of its proper divisors (177571).

55481441 is a wasteful number, since it uses less digits than its factorization.

55481441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177570.

The product of its digits is 12800, while the sum is 32.

The square root of 55481441 is about 7448.5865102045. The cubic root of 55481441 is about 381.4016586993.

Adding to 55481441 its reverse (14418455), we get a palindrome (69899896).

The spelling of 55481441 in words is "fifty-five million, four hundred eighty-one thousand, four hundred forty-one".