85255573 has 4 divisors (see below), whose sum is σ = 91813708. Its totient is φ = 78697440.

The previous prime is 85255559. The next prime is 85255579. The reversal of 85255573 is 37555258.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9878449 + 75377124 = 3143^2 + 8682^2 .

It is a cyclic number.

It is not a de Polignac number, because 85255573 - 2⁹ = 85255061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85255579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3279048 + ... + 3279073.

It is an arithmetic number, because the mean of its divisors is an integer number (22953427).

Almost surely, 2^85255573 is an apocalyptic number.

It is an amenable number.

85255573 is a deficient number, since it is larger than the sum of its proper divisors (6558135).

85255573 is a wasteful number, since it uses less digits than its factorization.

85255573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6558134.

The product of its digits is 210000, while the sum is 40.

The square root of 85255573 is about 9233.3944462478. The cubic root of 85255573 is about 440.1231972516.

The spelling of 85255573 in words is "eighty-five million, two hundred fifty-five thousand, five hundred seventy-three".