27105020 has 24 divisors (see below), whose sum is σ = 59917200. Its totient is φ = 10271232.

The previous prime is 27104999. The next prime is 27105047. The reversal of 27105020 is 2050172.

It is a self number, because there is not a number n which added to its sum of digits gives 27105020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35285 + ... + 36044.

It is an arithmetic number, because the mean of its divisors is an integer number (2496550).

Almost surely, 2^27105020 is an apocalyptic number.

27105020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27105020 is an abundant number, since it is smaller than the sum of its proper divisors (32812180).

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

27105020 is a wasteful number, since it uses less digits than its factorization.

27105020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71357 (or 71355 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 27105020 is about 5206.2481692674. The cubic root of 27105020 is about 300.3884597426.

Adding to 27105020 its reverse (2050172), we get a palindrome (29155192).

The spelling of 27105020 in words is "twenty-seven million, one hundred five thousand, twenty".