85505582 has 16 divisors (see below), whose sum is σ = 137102112. Its totient is φ = 39895680.

The previous prime is 85505569. The next prime is 85505633. The reversal of 85505582 is 28550558.

It is a super-2 number, since 2×85505582² = 14622409106317448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20783 + ... + 24554.

It is an arithmetic number, because the mean of its divisors is an integer number (8568882).

Almost surely, 2^85505582 is an apocalyptic number.

85505582 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

85505582 is a deficient number, since it is larger than the sum of its proper divisors (51596530).

85505582 is a wasteful number, since it uses less digits than its factorization.

85505582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45403.

The product of its (nonzero) digits is 80000, while the sum is 38.

The square root of 85505582 is about 9246.9228395180. The cubic root of 85505582 is about 440.5529927232.

The spelling of 85505582 in words is "eighty-five million, five hundred five thousand, five hundred eighty-two".