85512541901 has 2 divisors, whose sum is σ = 85512541902. Its totient is φ = 85512541900.

The previous prime is 85512541867. The next prime is 85512541913. The reversal of 85512541901 is 10914521558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85321825801 + 190716100 = 292099^2 + 13810^2 .

It is a cyclic number.

It is not a de Polignac number, because 85512541901 - 2¹⁰ = 85512540877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85512541001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42756270950 + 42756270951.

It is an arithmetic number, because the mean of its divisors is an integer number (42756270951).

Almost surely, 2^85512541901 is an apocalyptic number.

It is an amenable number.

85512541901 is a deficient number, since it is larger than the sum of its proper divisors (1).

85512541901 is an equidigital number, since it uses as much as digits as its factorization.

85512541901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 41.

The spelling of 85512541901 in words is "eighty-five billion, five hundred twelve million, five hundred forty-one thousand, nine hundred one".