54559595551 has 4 divisors (see below), whose sum is σ = 54957840912. Its totient is φ = 54161350192.

The previous prime is 54559595549. The next prime is 54559595579. The reversal of 54559595551 is 15559595545.

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

It is a cyclic number.

It is not a de Polignac number, because 54559595551 - 2¹ = 54559595549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54559595501) 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, 199122475 + ... + 199122748.

It is an arithmetic number, because the mean of its divisors is an integer number (13739460228).

Almost surely, 2^54559595551 is an apocalyptic number.

54559595551 is a deficient number, since it is larger than the sum of its proper divisors (398245361).

54559595551 is a wasteful number, since it uses less digits than its factorization.

54559595551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398245360.

The product of its digits is 25312500, while the sum is 58.

It can be divided in two parts, 545595 and 95551, that added together give a palindrome (641146).

The spelling of 54559595551 in words is "fifty-four billion, five hundred fifty-nine million, five hundred ninety-five thousand, five hundred fifty-one".