85612573 has 2 divisors, whose sum is σ = 85612574. Its totient is φ = 85612572.

The previous prime is 85612567. The next prime is 85612603. The reversal of 85612573 is 37521658.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43388569 + 42224004 = 6587^2 + 6498^2 .

It is a cyclic number.

It is not a de Polignac number, because 85612573 - 2⁹ = 85612061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85612873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42806286 + 42806287.

It is an arithmetic number, because the mean of its divisors is an integer number (42806287).

Almost surely, 2^85612573 is an apocalyptic number.

It is an amenable number.

85612573 is a deficient number, since it is larger than the sum of its proper divisors (1).

85612573 is an equidigital number, since it uses as much as digits as its factorization.

85612573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 37.

The square root of 85612573 is about 9252.7062527673. The cubic root of 85612573 is about 440.7366671224.

The spelling of 85612573 in words is "eighty-five million, six hundred twelve thousand, five hundred seventy-three".