245807085 has 16 divisors (see below), whose sum is σ = 413991360. Its totient is φ = 124197120.

The previous prime is 245807077. The next prime is 245807087. The reversal of 245807085 is 580708542.

It is not a de Polignac number, because 245807085 - 2³ = 245807077 is a prime.

It is a super-2 number, since 2×245807085² = 120842246072394450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245807087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430956 + ... + 431525.

It is an arithmetic number, because the mean of its divisors is an integer number (25874460).

Almost surely, 2^245807085 is an apocalyptic number.

It is an amenable number.

245807085 is a deficient number, since it is larger than the sum of its proper divisors (168184275).

245807085 is a wasteful number, since it uses less digits than its factorization.

245807085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862508.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 245807085 is about 15678.2360296049. The cubic root of 245807085 is about 626.4188225376.

The spelling of 245807085 in words is "two hundred forty-five million, eight hundred seven thousand, eighty-five".