54208920609 has 6 divisors (see below), whose sum is σ = 78301774226. Its totient is φ = 36139280400.

The previous prime is 54208920599. The next prime is 54208920611. The reversal of 54208920609 is 90602980245.

54208920609 is a `hidden beast` number, since 542 + 0 + 89 + 20 + 6 + 0 + 9 = 666.

54208920609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 39981202209 + 14227718400 = 199953^2 + 119280^2 .

It is not a de Polignac number, because 54208920609 - 2⁷ = 54208920481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54208920709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3011606692 + ... + 3011606709.

Almost surely, 2^54208920609 is an apocalyptic number.

It is an amenable number.

54208920609 is a deficient number, since it is larger than the sum of its proper divisors (24092853617).

54208920609 is a wasteful number, since it uses less digits than its factorization.

54208920609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6023213407 (or 6023213404 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 54208920609 in words is "fifty-four billion, two hundred eight million, nine hundred twenty thousand, six hundred nine".