85512825 has 72 divisors (see below), whose sum is σ = 163843680. Its totient is φ = 42508800.

The previous prime is 85512821. The next prime is 85512829. The reversal of 85512825 is 52821558.

It is an interprime number because it is at equal distance from previous prime (85512821) and next prime (85512829).

It is not a de Polignac number, because 85512825 - 2² = 85512821 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85512825.

It is not an unprimeable number, because it can be changed into a prime (85512821) 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 in 71 ways as a sum of consecutive naturals, for example, 354705 + ... + 354945.

Almost surely, 2^85512825 is an apocalyptic number.

It is an amenable number.

85512825 is a deficient number, since it is larger than the sum of its proper divisors (78330855).

85512825 is a wasteful number, since it uses less digits than its factorization.

85512825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 351 counting only the distinct ones).

The product of its digits is 32000, while the sum is 36.

The square root of 85512825 is about 9247.3144750246. The cubic root of 85512825 is about 440.5654318145.

The spelling of 85512825 in words is "eighty-five million, five hundred twelve thousand, eight hundred twenty-five".