85512523 has 8 divisors (see below), whose sum is σ = 87238080. Its totient is φ = 83803200.

The previous prime is 85512491. The next prime is 85512563. The reversal of 85512523 is 32521558.

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

It is not a de Polignac number, because 85512523 - 2⁵ = 85512491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85512563) 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, 6873 + ... + 14773.

It is an arithmetic number, because the mean of its divisors is an integer number (10904760).

Almost surely, 2^85512523 is an apocalyptic number.

85512523 is a deficient number, since it is larger than the sum of its proper divisors (1725557).

85512523 is a wasteful number, since it uses less digits than its factorization.

85512523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8117.

The product of its digits is 12000, while the sum is 31.

The square root of 85512523 is about 9247.2981459451. The cubic root of 85512523 is about 440.5649131753.

The spelling of 85512523 in words is "eighty-five million, five hundred twelve thousand, five hundred twenty-three".