55688688655 has 32 divisors (see below), whose sum is σ = 71534907648. Its totient is φ = 41470464000.

The previous prime is 55688688637. The next prime is 55688688683.

It is a happy number.

55688688655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55688688655 - 2⁵ = 55688688623 is a prime.

It is a super-2 number, since 2×55688688655² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9466315 + ... + 9472195.

It is an arithmetic number, because the mean of its divisors is an integer number (2235465864).

Almost surely, 2^55688688655 is an apocalyptic number.

55688688655 is a deficient number, since it is larger than the sum of its proper divisors (15846218993).

55688688655 is a wasteful number, since it uses less digits than its factorization.

55688688655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7107.

The product of its digits is 552960000, while the sum is 70.

The spelling of 55688688655 in words is "fifty-five billion, six hundred eighty-eight million, six hundred eighty-eight thousand, six hundred fifty-five".