85301520 has 80 divisors (see below), whose sum is σ = 266441280. Its totient is φ = 22574592.

The previous prime is 85301501. The next prime is 85301527. The reversal of 85301520 is 2510358.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (85301527) 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, 32082 + ... + 34638.

It is an arithmetic number, because the mean of its divisors is an integer number (3330516).

Almost surely, 2^85301520 is an apocalyptic number.

85301520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85301520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133220640).

85301520 is an abundant number, since it is smaller than the sum of its proper divisors (181139760).

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

85301520 is a wasteful number, since it uses less digits than its factorization.

85301520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712 (or 2706 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 85301520 is about 9235.8821993354. The cubic root of 85301520 is about 440.2022486188.

Adding to 85301520 its reverse (2510358), we get a palindrome (87811878).

The spelling of 85301520 in words is "eighty-five million, three hundred one thousand, five hundred twenty".