55166002 has 4 divisors (see below), whose sum is σ = 82749006. Its totient is φ = 27583000.

The previous prime is 55165993. The next prime is 55166009. The reversal of 55166002 is 20066155.

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., 28633201 + 26532801 = 5351^2 + 5151^2 .

It is not an unprimeable number, because it can be changed into a prime (55166009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13791499 + ... + 13791502.

Almost surely, 2^55166002 is an apocalyptic number.

55166002 is a deficient number, since it is larger than the sum of its proper divisors (27583004).

55166002 is a wasteful number, since it uses less digits than its factorization.

55166002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27583003.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 55166002 is about 7427.3819075095. The cubic root of 55166002 is about 380.6774664675.

The spelling of 55166002 in words is "fifty-five million, one hundred sixty-six thousand, two".