54916641649 has 3 divisors (see below), whose sum is σ = 54916875993. Its totient is φ = 54916407306.

The previous prime is 54916641617. The next prime is 54916641691. The reversal of 54916641649 is 94614661945.

The square root of 54916641649 is 234343.

It is a perfect power (a square), and thus also a powerful number.

54916641649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 54916641649 - 2⁵ = 54916641617 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 54916641649.

It is not an unprimeable number, because it can be changed into a prime (54916641049) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 117172 + ... + 351514.

It is an arithmetic number, because the mean of its divisors is an integer number (18305625331).

Almost surely, 2^54916641649 is an apocalyptic number.

54916641649 is the 234343-rd square number.

54916641649 is the 117172-nd centered octagonal number.

It is an amenable number.

54916641649 is a deficient number, since it is larger than the sum of its proper divisors (234344).

54916641649 is an frugal number, since it uses more digits than its factorization.

54916641649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468686 (or 234343 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 55.

The spelling of 54916641649 in words is "fifty-four billion, nine hundred sixteen million, six hundred forty-one thousand, six hundred forty-nine".