54639490081560 has 96 divisors (see below), whose sum is σ = 169765740602640. Its totient is φ = 14068098569728.

The previous prime is 54639490081529. The next prime is 54639490081597. The reversal of 54639490081560 is 6518009493645.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 54639490081494 and 54639490081503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270606027 + ... + 270807866.

Almost surely, 2^{54639490081560} is an apocalyptic number.

It is an amenable number.

54639490081560 is an abundant number, since it is smaller than the sum of its proper divisors (115126250521080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54639490081560 is a wasteful number, since it uses less digits than its factorization.

54639490081560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541413965 (or 541413932 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 60.

The spelling of 54639490081560 in words is "fifty-four trillion, six hundred thirty-nine billion, four hundred ninety million, eighty-one thousand, five hundred sixty".