54655651549 has 2 divisors, whose sum is σ = 54655651550. Its totient is φ = 54655651548.

The previous prime is 54655651529. The next prime is 54655651573. The reversal of 54655651549 is 94515655645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54629712900 + 25938649 = 233730^2 + 5093^2 .

It is a cyclic number.

It is not a de Polignac number, because 54655651549 - 2¹⁷ = 54655520477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54655651549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54655651529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27327825774 + 27327825775.

It is an arithmetic number, because the mean of its divisors is an integer number (27327825775).

Almost surely, 2^54655651549 is an apocalyptic number.

It is an amenable number.

54655651549 is a deficient number, since it is larger than the sum of its proper divisors (1).

54655651549 is an equidigital number, since it uses as much as digits as its factorization.

54655651549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200000, while the sum is 55.

The spelling of 54655651549 in words is "fifty-four billion, six hundred fifty-five million, six hundred fifty-one thousand, five hundred forty-nine".