54908566997 has 8 divisors (see below), whose sum is σ = 55495665792. Its totient is φ = 54321897600.

The previous prime is 54908566987. The next prime is 54908567003. The reversal of 54908566997 is 79966580945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54908566997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54908566927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153122 + ... + 365052.

It is an arithmetic number, because the mean of its divisors is an integer number (6936958224).

Almost surely, 2^54908566997 is an apocalyptic number.

It is an amenable number.

54908566997 is a deficient number, since it is larger than the sum of its proper divisors (587098795).

54908566997 is a wasteful number, since it uses less digits than its factorization.

54908566997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214699.

The product of its (nonzero) digits is 146966400, while the sum is 68.

The spelling of 54908566997 in words is "fifty-four billion, nine hundred eight million, five hundred sixty-six thousand, nine hundred ninety-seven".