54991960577 has 4 divisors (see below), whose sum is σ = 55812736176. Its totient is φ = 54171184980.

The previous prime is 54991960531. The next prime is 54991960601. The reversal of 54991960577 is 77506919945.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54991960577 - 2²⁰ = 54990912001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54991980577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410387699 + ... + 410387832.

It is an arithmetic number, because the mean of its divisors is an integer number (13953184044).

Almost surely, 2^54991960577 is an apocalyptic number.

It is an amenable number.

54991960577 is a deficient number, since it is larger than the sum of its proper divisors (820775599).

54991960577 is an equidigital number, since it uses as much as digits as its factorization.

54991960577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820775598.

The product of its (nonzero) digits is 21432600, while the sum is 62.

The spelling of 54991960577 in words is "fifty-four billion, nine hundred ninety-one million, nine hundred sixty thousand, five hundred seventy-seven".