85130580 has 48 divisors (see below), whose sum is σ = 238875840. Its totient is φ = 22652928.

The previous prime is 85130533. The next prime is 85130587. The reversal of 85130580 is 8503158.

It is a happy number.

It is a super-3 number, since 3×85130580³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85130587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33391 + ... + 35849.

It is an arithmetic number, because the mean of its divisors is an integer number (4976580).

Almost surely, 2^85130580 is an apocalyptic number.

It is an amenable number.

85130580 is an abundant number, since it is smaller than the sum of its proper divisors (153745260).

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

85130580 is a wasteful number, since it uses less digits than its factorization.

85130580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048 (or 3046 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 85130580 is about 9226.6234343881. The cubic root of 85130580 is about 439.9080041827.

The spelling of 85130580 in words is "eighty-five million, one hundred thirty thousand, five hundred eighty".