55655656 has 16 divisors (see below), whose sum is σ = 119262240. Its totient is φ = 23852400.

The previous prime is 55655647. The next prime is 55655687. The reversal of 55655656 is 65655655.

55655656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496870 + ... + 496981.

It is an arithmetic number, because the mean of its divisors is an integer number (7453890).

Almost surely, 2^55655656 is an apocalyptic number.

55655656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55655656 is an abundant number, since it is smaller than the sum of its proper divisors (63606584).

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

55655656 is a wasteful number, since it uses less digits than its factorization.

55655656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993864 (or 993860 counting only the distinct ones).

The product of its digits is 675000, while the sum is 43.

The square root of 55655656 is about 7460.2718449129. The cubic root of 55655656 is about 381.8004494891.

Subtracting 55655656 from its reverse (65655655), we obtain a palindrome (9999999).

The spelling of 55655656 in words is "fifty-five million, six hundred fifty-five thousand, six hundred fifty-six".