85487513 has 4 divisors (see below), whose sum is σ = 85545168. Its totient is φ = 85429860.

The previous prime is 85487489. The next prime is 85487531. The reversal of 85487513 is 31578458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85487513 - 2⁸ = 85487257 is a prime.

It is a super-2 number, since 2×85487513² = 14616229757850338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85487533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26543 + ... + 29588.

It is an arithmetic number, because the mean of its divisors is an integer number (21386292).

Almost surely, 2^85487513 is an apocalyptic number.

It is an amenable number.

85487513 is a deficient number, since it is larger than the sum of its proper divisors (57655).

85487513 is a wasteful number, since it uses less digits than its factorization.

85487513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57654.

The product of its digits is 134400, while the sum is 41.

The square root of 85487513 is about 9245.9457601697. The cubic root of 85487513 is about 440.5219580522.

It can be divided in two parts, 8548 and 7513, that added together give a palindrome (16061).

The spelling of 85487513 in words is "eighty-five million, four hundred eighty-seven thousand, five hundred thirteen".