85560001 has 2 divisors, whose sum is σ = 85560002. Its totient is φ = 85560000.

The previous prime is 85559987. The next prime is 85560011. The reversal of 85560001 is 10006558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82373776 + 3186225 = 9076^2 + 1785^2 .

It is a cyclic number.

It is not a de Polignac number, because 85560001 - 2¹⁷ = 85428929 is a prime.

It is a super-2 number, since 2×85560001² = 14641027542240002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85560011) 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, 42780000 + 42780001.

It is an arithmetic number, because the mean of its divisors is an integer number (42780001).

Almost surely, 2^85560001 is an apocalyptic number.

It is an amenable number.

85560001 is a deficient number, since it is larger than the sum of its proper divisors (1).

85560001 is an equidigital number, since it uses as much as digits as its factorization.

85560001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 85560001 is about 9249.8649179326. The cubic root of 85560001 is about 440.6464344552.

Adding to 85560001 its reverse (10006558), we get a palindrome (95566559).

The spelling of 85560001 in words is "eighty-five million, five hundred sixty thousand, one".