85080555 has 24 divisors (see below), whose sum is σ = 168541152. Its totient is φ = 38893824.

The previous prime is 85080539. The next prime is 85080559. The reversal of 85080555 is 55508058.

It is not a de Polignac number, because 85080555 - 2⁴ = 85080539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85080559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134734 + ... + 135363.

It is an arithmetic number, because the mean of its divisors is an integer number (7022548).

Almost surely, 2^85080555 is an apocalyptic number.

85080555 is a deficient number, since it is larger than the sum of its proper divisors (83460597).

85080555 is a wasteful number, since it uses less digits than its factorization.

85080555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270115 (or 270112 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

The square root of 85080555 is about 9223.9121309778. The cubic root of 85080555 is about 439.8218200726.

It can be divided in two parts, 850805 and 55, that added together give a triangular number (850860 = T₁₃₀₄).

The spelling of 85080555 in words is "eighty-five million, eighty thousand, five hundred fifty-five".