27085520 has 80 divisors (see below), whose sum is σ = 78530688. Its totient is φ = 8440320.

The previous prime is 27085511. The next prime is 27085529. The reversal of 27085520 is 2558072.

It is an interprime number because it is at equal distance from previous prime (27085511) and next prime (27085529).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27085529) 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, 3962 + ... + 8358.

Almost surely, 2^27085520 is an apocalyptic number.

27085520 is a gapful number since it is divisible by the number (20) 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 27085520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39265344).

27085520 is an abundant number, since it is smaller than the sum of its proper divisors (51445168).

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

27085520 is a wasteful number, since it uses less digits than its factorization.

27085520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4428 (or 4422 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 27085520 is about 5204.3750825627. The cubic root of 27085520 is about 300.3164069123.

It can be divided in two parts, 2708 and 5520, that added together give a palindrome (8228).

The spelling of 27085520 in words is "twenty-seven million, eighty-five thousand, five hundred twenty".