555166001 has 8 divisors (see below), whose sum is σ = 605075520. Its totient is φ = 506285712.

The previous prime is 555165979. The next prime is 555166009. The reversal of 555166001 is 100661555.

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 555166001 - 2¹⁰ = 555164977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555166009) 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, 256181 + ... + 258338.

It is an arithmetic number, because the mean of its divisors is an integer number (75634440).

Almost surely, 2^555166001 is an apocalyptic number.

It is an amenable number.

555166001 is a deficient number, since it is larger than the sum of its proper divisors (49909519).

555166001 is a wasteful number, since it uses less digits than its factorization.

555166001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514615.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 555166001 is about 23561.9608903843. The cubic root of 555166001 is about 821.8785016857.

The spelling of 555166001 in words is "five hundred fifty-five million, one hundred sixty-six thousand, one".