54840641776825 has 6 divisors (see below), whose sum is σ = 68002395803294. Its totient is φ = 43872513421440.

The previous prime is 54840641776769. The next prime is 54840641776831. The reversal of 54840641776825 is 52867714604845.

It can be written as a sum of positive squares in 3 ways, for example, as 4355936319744 + 50484705457081 = 2087088^2 + 7105259^2 .

It is a de Polignac number, because none of the positive numbers 2^k-54840641776825 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1096812835512 + ... + 1096812835561.

Almost surely, 2^{54840641776825} is an apocalyptic number.

It is an amenable number.

54840641776825 is a deficient number, since it is larger than the sum of its proper divisors (13161754026469).

54840641776825 is a wasteful number, since it uses less digits than its factorization.

54840641776825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193625671083 (or 2193625671078 counting only the distinct ones).

The product of its (nonzero) digits is 361267200, while the sum is 67.

The spelling of 54840641776825 in words is "fifty-four trillion, eight hundred forty billion, six hundred forty-one million, seven hundred seventy-six thousand, eight hundred twenty-five".