85500101 has 4 divisors (see below), whose sum is σ = 86901804. Its totient is φ = 84098400.

The previous prime is 85500073. The next prime is 85500109. The reversal of 85500101 is 10100558.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15760900 + 69739201 = 3970^2 + 8351^2 .

It is a cyclic number.

It is not a de Polignac number, because 85500101 - 2²² = 81305797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85500109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700760 + ... + 700881.

It is an arithmetic number, because the mean of its divisors is an integer number (21725451).

Almost surely, 2^85500101 is an apocalyptic number.

It is an amenable number.

85500101 is a deficient number, since it is larger than the sum of its proper divisors (1401703).

85500101 is a wasteful number, since it uses less digits than its factorization.

85500101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401702.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 85500101 is about 9246.6264659064. The cubic root of 85500101 is about 440.5435792148.

Adding to 85500101 its reverse (10100558), we get a palindrome (95600659).

The spelling of 85500101 in words is "eighty-five million, five hundred thousand, one hundred one".