55055856 has 40 divisors (see below), whose sum is σ = 143035984. Its totient is φ = 18247680.

The previous prime is 55055849. The next prime is 55055873. The reversal of 55055856 is 65855055.

It is a super-2 number, since 2×55055856² = 6062294559785472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5520 + ... + 11856.

Almost surely, 2^55055856 is an apocalyptic number.

It is an amenable number.

55055856 is an abundant number, since it is smaller than the sum of its proper divisors (87980128).

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

55055856 is a wasteful number, since it uses less digits than its factorization.

55055856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529 (or 6523 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 39.

The square root of 55055856 is about 7419.9633422275. The cubic root of 55055856 is about 380.4239405278.

The spelling of 55055856 in words is "fifty-five million, fifty-five thousand, eight hundred fifty-six".