55286624 has 24 divisors (see below), whose sum is σ = 109648728. Its totient is φ = 27439360.

The previous prime is 55286603. The next prime is 55286629. The reversal of 55286624 is 42668255.

55286624 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 2×55286624² = 6113221586634752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55286629) by changing a digit.

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, 1922 + ... + 10689.

It is an arithmetic number, because the mean of its divisors is an integer number (4568697).

Almost surely, 2^55286624 is an apocalyptic number.

It is an amenable number.

55286624 is a deficient number, since it is larger than the sum of its proper divisors (54362104).

55286624 is a wasteful number, since it uses less digits than its factorization.

55286624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12758 (or 12750 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 55286624 is about 7435.4975623693. The cubic root of 55286624 is about 380.9547184539.

The spelling of 55286624 in words is "fifty-five million, two hundred eighty-six thousand, six hundred twenty-four".