85202513 has 6 divisors (see below), whose sum is σ = 93652482. Its totient is φ = 77456720.

The previous prime is 85202503. The next prime is 85202519. The reversal of 85202513 is 31520258.

It can be written as a sum of positive squares in only one way, i.e., 60481729 + 24720784 = 7777^2 + 4972^2 .

It is not a de Polignac number, because 85202513 - 2⁴ = 85202497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85202519) 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, 351956 + ... + 352197.

It is an arithmetic number, because the mean of its divisors is an integer number (15608747).

Almost surely, 2^85202513 is an apocalyptic number.

It is an amenable number.

85202513 is a deficient number, since it is larger than the sum of its proper divisors (8449969).

85202513 is a wasteful number, since it uses less digits than its factorization.

85202513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704175 (or 704164 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 85202513 is about 9230.5207328731. The cubic root of 85202513 is about 440.0318726912.

The spelling of 85202513 in words is "eighty-five million, two hundred two thousand, five hundred thirteen".