85242601 has 2 divisors, whose sum is σ = 85242602. Its totient is φ = 85242600.

The previous prime is 85242593. The next prime is 85242637. The reversal of 85242601 is 10624258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62394201 + 22848400 = 7899^2 + 4780^2 .

It is a cyclic number.

It is not a de Polignac number, because 85242601 - 2³ = 85242593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85242601.

It is not a weakly prime, because it can be changed into another prime (85242691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42621300 + 42621301.

It is an arithmetic number, because the mean of its divisors is an integer number (42621301).

Almost surely, 2^85242601 is an apocalyptic number.

It is an amenable number.

85242601 is a deficient number, since it is larger than the sum of its proper divisors (1).

85242601 is an equidigital number, since it uses as much as digits as its factorization.

85242601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 85242601 is about 9232.6919693013. The cubic root of 85242601 is about 440.1008739106.

Adding to 85242601 its reverse (10624258), we get a palindrome (95866859).

The spelling of 85242601 in words is "eighty-five million, two hundred forty-two thousand, six hundred one".