55051105550501 has 4 divisors (see below), whose sum is σ = 55279533374604. Its totient is φ = 54822677726400.

The previous prime is 55051105550489. The next prime is 55051105550521. The reversal of 55051105550501 is 10505550115055.

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 40088335456225 + 14962770094276 = 6331535^2 + 3868174^2 .

It is a cyclic number.

It is not a de Polignac number, because 55051105550501 - 2⁶ = 55051105550437 is a prime.

It is a super-2 number, since 2×55051105550501² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55051105550521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114213911690 + ... + 114213912171.

It is an arithmetic number, because the mean of its divisors is an integer number (13819883343651).

Almost surely, 2^{55051105550501} is an apocalyptic number.

It is an amenable number.

55051105550501 is a deficient number, since it is larger than the sum of its proper divisors (228427824103).

55051105550501 is a wasteful number, since it uses less digits than its factorization.

55051105550501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228427824102.

The product of its (nonzero) digits is 78125, while the sum is 38.

Adding to 55051105550501 its reverse (10505550115055), we get a palindrome (65556655665556).

The spelling of 55051105550501 in words is "fifty-five trillion, fifty-one billion, one hundred five million, five hundred fifty thousand, five hundred one".