55055056 has 40 divisors (see below), whose sum is σ = 122323520. Its totient is φ = 23514624.

The previous prime is 55055051. The next prime is 55055071. The reversal of 55055056 is 65055055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41800 + ... + 43096.

It is an arithmetic number, because the mean of its divisors is an integer number (3058088).

Almost surely, 2^55055056 is an apocalyptic number.

55055056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55055056 is an abundant number, since it is smaller than the sum of its proper divisors (67268464).

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

55055056 is a wasteful number, since it uses less digits than its factorization.

55055056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 55055056 is about 7419.9094334095. The cubic root of 55055056 is about 380.4220979105.

Subtracting 55055056 from its reverse (65055055), we obtain a palindrome (9999999).

The spelling of 55055056 in words is "fifty-five million, fifty-five thousand, fifty-six".