54570000649 has 2 divisors, whose sum is σ = 54570000650. Its totient is φ = 54570000648.

The previous prime is 54570000619. The next prime is 54570000703. The reversal of 54570000649 is 94600007545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50140166400 + 4429834249 = 223920^2 + 66557^2 .

It is a cyclic number.

It is not a de Polignac number, because 54570000649 - 2²¹ = 54567903497 is a prime.

It is not a weakly prime, because it can be changed into another prime (54570000619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27285000324 + 27285000325.

It is an arithmetic number, because the mean of its divisors is an integer number (27285000325).

Almost surely, 2^54570000649 is an apocalyptic number.

It is an amenable number.

54570000649 is a deficient number, since it is larger than the sum of its proper divisors (1).

54570000649 is an equidigital number, since it uses as much as digits as its factorization.

54570000649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 54570000649 in words is "fifty-four billion, five hundred seventy million, six hundred forty-nine", and thus it is an aban number.