54881221017 has 16 divisors (see below), whose sum is σ = 83649001472. Its totient is φ = 31353019920.

The previous prime is 54881220997. The next prime is 54881221111. The reversal of 54881221017 is 71012218845.

It is not a de Polignac number, because 54881221017 - 2⁸ = 54881220761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54881226017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231523 + ... + 404184.

It is an arithmetic number, because the mean of its divisors is an integer number (5228062592).

Almost surely, 2^54881221017 is an apocalyptic number.

It is an amenable number.

54881221017 is a deficient number, since it is larger than the sum of its proper divisors (28767780455).

54881221017 is a wasteful number, since it uses less digits than its factorization.

54881221017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639828.

The product of its (nonzero) digits is 35840, while the sum is 39.

The spelling of 54881221017 in words is "fifty-four billion, eight hundred eighty-one million, two hundred twenty-one thousand, seventeen".