55006066 has 4 divisors (see below), whose sum is σ = 82509102. Its totient is φ = 27503032.

The previous prime is 55006037. The next prime is 55006109. The reversal of 55006066 is 66060055.

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., 48650625 + 6355441 = 6975^2 + 2521^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13751515 + ... + 13751518.

Almost surely, 2^55006066 is an apocalyptic number.

55006066 is a deficient number, since it is larger than the sum of its proper divisors (27503036).

55006066 is a wasteful number, since it uses less digits than its factorization.

55006066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27503035.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 55006066 is about 7416.6074454564. The cubic root of 55006066 is about 380.3092265983.

The spelling of 55006066 in words is "fifty-five million, six thousand, sixty-six".