85555001 has 8 divisors (see below), whose sum is σ = 99380544. Its totient is φ = 72130320.

The previous prime is 85554991. The next prime is 85555003. The reversal of 85555001 is 10055558.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85555001 is a prime.

It is a super-2 number, since 2×85555001² = 14639316392220002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85555003) 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, 99755 + ... + 100608.

It is an arithmetic number, because the mean of its divisors is an integer number (12422568).

Almost surely, 2^85555001 is an apocalyptic number.

It is an amenable number.

85555001 is a deficient number, since it is larger than the sum of its proper divisors (13825543).

85555001 is a wasteful number, since it uses less digits than its factorization.

85555001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200431.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 85555001 is about 9249.5946397667. The cubic root of 85555001 is about 440.6378507125.

The spelling of 85555001 in words is "eighty-five million, five hundred fifty-five thousand, one".