55808286 has 32 divisors (see below), whose sum is σ = 113702400. Its totient is φ = 18258240.

The previous prime is 55808239. The next prime is 55808303. The reversal of 55808286 is 68280855.

55808286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55808286² = 6229129572515592, 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132985 + ... + 133403.

It is an arithmetic number, because the mean of its divisors is an integer number (3553200).

Almost surely, 2^55808286 is an apocalyptic number.

55808286 is an abundant number, since it is smaller than the sum of its proper divisors (57894114).

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

55808286 is a wasteful number, since it uses less digits than its factorization.

55808286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 55808286 is about 7470.4943611517. The cubic root of 55808286 is about 382.1491472822.

The spelling of 55808286 in words is "fifty-five million, eight hundred eight thousand, two hundred eighty-six".