85241505 has 32 divisors (see below), whose sum is σ = 144144000. Its totient is φ = 42895872.

The previous prime is 85241491. The next prime is 85241521. The reversal of 85241505 is 50514258.

It is not a de Polignac number, because 85241505 - 2¹¹ = 85239457 is a prime.

It is a super-2 number, since 2×85241505² = 14532228349330050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99037 + ... + 99893.

It is an arithmetic number, because the mean of its divisors is an integer number (4504500).

Almost surely, 2^85241505 is an apocalyptic number.

It is an amenable number.

85241505 is a deficient number, since it is larger than the sum of its proper divisors (58902495).

85241505 is a wasteful number, since it uses less digits than its factorization.

With its successor (85241506) it forms an eRAP, since the sums of their prime factors are consecutive (1233 and 1234).

85241505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 85241505 is about 9232.6326148071. The cubic root of 85241505 is about 440.0989877151.

The spelling of 85241505 in words is "eighty-five million, two hundred forty-one thousand, five hundred five".