85248613 has 2 divisors, whose sum is σ = 85248614. Its totient is φ = 85248612.

The previous prime is 85248593. The next prime is 85248617. The reversal of 85248613 is 31684258.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85248289 + 324 = 9233^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 85248613 - 2⁹ = 85248101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85248617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42624306 + 42624307.

It is an arithmetic number, because the mean of its divisors is an integer number (42624307).

Almost surely, 2^85248613 is an apocalyptic number.

It is an amenable number.

85248613 is a deficient number, since it is larger than the sum of its proper divisors (1).

85248613 is an equidigital number, since it uses as much as digits as its factorization.

85248613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 85248613 is about 9233.0175457431. The cubic root of 85248613 is about 440.1112201624. Note that the first 3 decimals are identical.

The spelling of 85248613 in words is "eighty-five million, two hundred forty-eight thousand, six hundred thirteen".