85024591 has 2 divisors, whose sum is σ = 85024592. Its totient is φ = 85024590.

The previous prime is 85024579. The next prime is 85024651. The reversal of 85024591 is 19542058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85024591 - 2¹⁷ = 84893519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85024391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42512295 + 42512296.

It is an arithmetic number, because the mean of its divisors is an integer number (42512296).

Almost surely, 2^85024591 is an apocalyptic number.

85024591 is a deficient number, since it is larger than the sum of its proper divisors (1).

85024591 is an equidigital number, since it uses as much as digits as its factorization.

85024591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 85024591 is about 9220.8779950718. The cubic root of 85024591 is about 439.7253640838.

The spelling of 85024591 in words is "eighty-five million, twenty-four thousand, five hundred ninety-one".