55563886 has 16 divisors (see below), whose sum is σ = 95543136. Its totient is φ = 23740416.

The previous prime is 55563853. The next prime is 55563887. The reversal of 55563886 is 68836555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55563887) 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 7 ways as a sum of consecutive naturals, for example, 1171 + ... + 10606.

It is an arithmetic number, because the mean of its divisors is an integer number (5971446).

Almost surely, 2^55563886 is an apocalyptic number.

55563886 is a deficient number, since it is larger than the sum of its proper divisors (39979250).

55563886 is a wasteful number, since it uses less digits than its factorization.

55563886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12123.

The product of its digits is 864000, while the sum is 46.

The square root of 55563886 is about 7454.1187272541. The cubic root of 55563886 is about 381.5904851881.

The spelling of 55563886 in words is "fifty-five million, five hundred sixty-three thousand, eight hundred eighty-six".