55647988974655 has 16 divisors (see below), whose sum is σ = 83255173115904. Its totient is φ = 34689655464480.

The previous prime is 55647988974623. The next prime is 55647988974701.

55647988974655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55647988974655 - 2⁵ = 55647988974623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72270115167 + ... + 72270115936.

It is an arithmetic number, because the mean of its divisors is an integer number (5203448319744).

Almost surely, 2^{55647988974655} is an apocalyptic number.

55647988974655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55647988974655 is a deficient number, since it is larger than the sum of its proper divisors (27607184141249).

55647988974655 is a wasteful number, since it uses less digits than its factorization.

55647988974655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144540231126.

The product of its digits is 91445760000, while the sum is 88.

The spelling of 55647988974655 in words is "fifty-five trillion, six hundred forty-seven billion, nine hundred eighty-eight million, nine hundred seventy-four thousand, six hundred fifty-five".