54541233561 has 16 divisors (see below), whose sum is σ = 75910970880. Its totient is φ = 34792517760.

The previous prime is 54541233559. The next prime is 54541233577. The reversal of 54541233561 is 16533214545.

It is a happy number.

It is not a de Polignac number, because 54541233561 - 2¹ = 54541233559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54541233961) 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 15 ways as a sum of consecutive naturals, for example, 3286470 + ... + 3303023.

It is an arithmetic number, because the mean of its divisors is an integer number (4744435680).

Almost surely, 2^54541233561 is an apocalyptic number.

It is an amenable number.

54541233561 is a deficient number, since it is larger than the sum of its proper divisors (21369737319).

54541233561 is a wasteful number, since it uses less digits than its factorization.

54541233561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6589616.

The product of its digits is 216000, while the sum is 39.

The spelling of 54541233561 in words is "fifty-four billion, five hundred forty-one million, two hundred thirty-three thousand, five hundred sixty-one".