55566003 has 8 divisors (see below), whose sum is σ = 74235600. Its totient is φ = 36970208.

The previous prime is 55565989. The next prime is 55566011. The reversal of 55566003 is 30066555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55566003 - 2⁴ = 55565987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55566053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16668 + ... + 19721.

It is an arithmetic number, because the mean of its divisors is an integer number (9279450).

Almost surely, 2^55566003 is an apocalyptic number.

55566003 is a deficient number, since it is larger than the sum of its proper divisors (18669597).

55566003 is a wasteful number, since it uses less digits than its factorization.

55566003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36901.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 55566003 is about 7454.2607279327. The cubic root of 55566003 is about 381.5953313622.

The spelling of 55566003 in words is "fifty-five million, five hundred sixty-six thousand, three".