55300066 has 4 divisors (see below), whose sum is σ = 82950102. Its totient is φ = 27650032.

The previous prime is 55300057. The next prime is 55300087. The reversal of 55300066 is 66000355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53597041 + 1703025 = 7321^2 + 1305^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55300066.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13825015 + ... + 13825018.

Almost surely, 2^55300066 is an apocalyptic number.

55300066 is a deficient number, since it is larger than the sum of its proper divisors (27650036).

55300066 is a wasteful number, since it uses less digits than its factorization.

55300066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27650035.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 55300066 is about 7436.4014146629. The cubic root of 55300066 is about 380.9855901669.

The spelling of 55300066 in words is "fifty-five million, three hundred thousand, sixty-six".