85513012 has 24 divisors (see below), whose sum is σ = 161621600. Its totient is φ = 39354336.

The previous prime is 85512989. The next prime is 85513019. The reversal of 85513012 is 21031558.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85513019) 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, 17539 + ... + 21877.

Almost surely, 2^85513012 is an apocalyptic number.

It is an amenable number.

85513012 is a deficient number, since it is larger than the sum of its proper divisors (76108588).

85513012 is a wasteful number, since it uses less digits than its factorization.

85513012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735 (or 4733 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 85513012 is about 9247.3245860627. The cubic root of 85513012 is about 440.5657529581.

The spelling of 85513012 in words is "eighty-five million, five hundred thirteen thousand, twelve".