85000521 has 8 divisors (see below), whose sum is σ = 114337440. Its totient is φ = 56165312.

The previous prime is 85000483. The next prime is 85000541. The reversal of 85000521 is 12500058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85000521 - 2⁶ = 85000457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85000541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125031 + ... + 125708.

It is an arithmetic number, because the mean of its divisors is an integer number (14292180).

Almost surely, 2^85000521 is an apocalyptic number.

It is an amenable number.

85000521 is a deficient number, since it is larger than the sum of its proper divisors (29336919).

85000521 is a wasteful number, since it uses less digits than its factorization.

85000521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250855.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 85000521 is about 9219.5727124417. The cubic root of 85000521 is about 439.6838655466.

Adding to 85000521 its reverse (12500058), we get a palindrome (97500579).

The spelling of 85000521 in words is "eighty-five million, five hundred twenty-one", and thus it is an aban number.