85061513 has 2 divisors, whose sum is σ = 85061514. Its totient is φ = 85061512.

The previous prime is 85061507. The next prime is 85061533. The reversal of 85061513 is 31516058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60031504 + 25030009 = 7748^2 + 5003^2 .

It is a cyclic number.

It is not a de Polignac number, because 85061513 - 2⁴ = 85061497 is a prime.

It is not a weakly prime, because it can be changed into another prime (85061533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42530756 + 42530757.

It is an arithmetic number, because the mean of its divisors is an integer number (42530757).

Almost surely, 2^85061513 is an apocalyptic number.

It is an amenable number.

85061513 is a deficient number, since it is larger than the sum of its proper divisors (1).

85061513 is an equidigital number, since it uses as much as digits as its factorization.

85061513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 85061513 is about 9222.8798647711. The cubic root of 85061513 is about 439.7890052421.

The spelling of 85061513 in words is "eighty-five million, sixty-one thousand, five hundred thirteen".