55066828 has 12 divisors (see below), whose sum is σ = 96872832. Its totient is φ = 27388880.

The previous prime is 55066799. The next prime is 55066829. The reversal of 55066828 is 82866055.

It is not an unprimeable number, because it can be changed into a prime (55066829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35275 + ... + 36802.

It is an arithmetic number, because the mean of its divisors is an integer number (8072736).

Almost surely, 2^55066828 is an apocalyptic number.

It is an amenable number.

55066828 is a deficient number, since it is larger than the sum of its proper divisors (41806004).

55066828 is a wasteful number, since it uses less digits than its factorization.

55066828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72272 (or 72270 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 55066828 is about 7420.7026621473. The cubic root of 55066828 is about 380.4492102238.

The spelling of 55066828 in words is "fifty-five million, sixty-six thousand, eight hundred twenty-eight".