85355580 has 24 divisors (see below), whose sum is σ = 238995792. Its totient is φ = 22761472.

The previous prime is 85355573. The next prime is 85355587. The reversal of 85355580 is 8555358.

It is an interprime number because it is at equal distance from previous prime (85355573) and next prime (85355587).

It is a super-3 number, since 3×85355580³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85355587) 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 7 ways as a sum of consecutive naturals, for example, 711237 + ... + 711356.

It is an arithmetic number, because the mean of its divisors is an integer number (9958158).

Almost surely, 2^85355580 is an apocalyptic number.

It is an amenable number.

85355580 is an abundant number, since it is smaller than the sum of its proper divisors (153640212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85355580 is a wasteful number, since it uses less digits than its factorization.

85355580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422605 (or 1422603 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 39.

The square root of 85355580 is about 9238.8083647189. The cubic root of 85355580 is about 440.2952219840.

The spelling of 85355580 in words is "eighty-five million, three hundred fifty-five thousand, five hundred eighty".