54520516641 has 4 divisors (see below), whose sum is σ = 72694022192. Its totient is φ = 36347011092.

The previous prime is 54520516637. The next prime is 54520516651. The reversal of 54520516641 is 14661502545.

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 not a de Polignac number, because 54520516641 - 2² = 54520516637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54520516641.

It is not an unprimeable number, because it can be changed into a prime (54520516651) 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, 9086752771 + ... + 9086752776.

It is an arithmetic number, because the mean of its divisors is an integer number (18173505548).

Almost surely, 2^54520516641 is an apocalyptic number.

It is an amenable number.

54520516641 is a deficient number, since it is larger than the sum of its proper divisors (18173505551).

54520516641 is a wasteful number, since it uses less digits than its factorization.

54520516641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18173505550.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 54520516641 in words is "fifty-four billion, five hundred twenty million, five hundred sixteen thousand, six hundred forty-one".