55555550055487 has 16 divisors (see below), whose sum is σ = 59905499240160. Its totient is φ = 51411158967168.

The previous prime is 55555550055469. The next prime is 55555550055493. The reversal of 55555550055487 is 78455005555555.

It is a cyclic number.

It is not a de Polignac number, because 55555550055487 - 2³⁹ = 55005794241599 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 (55555550055497) 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, 386315488 + ... + 386459269.

It is an arithmetic number, because the mean of its divisors is an integer number (3744093702510).

Almost surely, 2^{55555550055487} is an apocalyptic number.

55555550055487 is a deficient number, since it is larger than the sum of its proper divisors (4349949184673).

55555550055487 is a wasteful number, since it uses less digits than its factorization.

55555550055487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772774890.

The product of its (nonzero) digits is 437500000, while the sum is 64.

The spelling of 55555550055487 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred fifty million, fifty-five thousand, four hundred eighty-seven".