55688655 has 64 divisors (see below), whose sum is σ = 102187008. Its totient is φ = 25656960.

The previous prime is 55688653. The next prime is 55688657.

55688655 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (55688653) and next prime (55688657).

It is not a de Polignac number, because 55688655 - 2¹ = 55688653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55688653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 333382 + ... + 333548.

It is an arithmetic number, because the mean of its divisors is an integer number (1596672).

Almost surely, 2^55688655 is an apocalyptic number.

55688655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55688655 is a deficient number, since it is larger than the sum of its proper divisors (46498353).

55688655 is a wasteful number, since it uses less digits than its factorization.

55688655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276.

The product of its digits is 1440000, while the sum is 48.

The square root of 55688655 is about 7462.4831658102. The cubic root of 55688655 is about 381.8758928176.

The spelling of 55688655 in words is "fifty-five million, six hundred eighty-eight thousand, six hundred fifty-five".