85383513 has 6 divisors (see below), whose sum is σ = 123331754. Its totient is φ = 56922336.

The previous prime is 85383499. The next prime is 85383541. The reversal of 85383513 is 31538358.

It can be written as a sum of positive squares in only one way, i.e., 85155984 + 227529 = 9228^2 + 477^2 .

It is not a de Polignac number, because 85383513 - 2⁶ = 85383449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85383313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4743520 + ... + 4743537.

Almost surely, 2^85383513 is an apocalyptic number.

It is an amenable number.

85383513 is a deficient number, since it is larger than the sum of its proper divisors (37948241).

85383513 is a wasteful number, since it uses less digits than its factorization.

85383513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9487063 (or 9487060 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 85383513 is about 9240.3199619927. The cubic root of 85383513 is about 440.3432462806.

The spelling of 85383513 in words is "eighty-five million, three hundred eighty-three thousand, five hundred thirteen".