54577511845 has 4 divisors (see below), whose sum is σ = 65493014220. Its totient is φ = 43662009472.

The previous prime is 54577511839. The next prime is 54577511867. The reversal of 54577511845 is 54811577545.

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 39759562404 + 14817949441 = 199398^2 + 121729^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54577511845 is a prime.

It is a super-2 number, since 2×54577511845² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54577511792 and 54577511801.

It is a congruent number.

It is an unprimeable number.

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, 5457751180 + ... + 5457751189.

It is an arithmetic number, because the mean of its divisors is an integer number (16373253555).

Almost surely, 2^54577511845 is an apocalyptic number.

It is an amenable number.

54577511845 is a deficient number, since it is larger than the sum of its proper divisors (10915502375).

54577511845 is a wasteful number, since it uses less digits than its factorization.

54577511845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10915502374.

The product of its digits is 3920000, while the sum is 52.

The spelling of 54577511845 in words is "fifty-four billion, five hundred seventy-seven million, five hundred eleven thousand, eight hundred forty-five".