27125220 has 24 divisors (see below), whose sum is σ = 75950784. Its totient is φ = 7233376.

The previous prime is 27125143. The next prime is 27125221. The reversal of 27125220 is 2252172.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27125221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225984 + ... + 226103.

It is an arithmetic number, because the mean of its divisors is an integer number (3164616).

Almost surely, 2^27125220 is an apocalyptic number.

27125220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27125220 is an abundant number, since it is smaller than the sum of its proper divisors (48825564).

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

27125220 is a wasteful number, since it uses less digits than its factorization.

27125220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452099 (or 452097 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 27125220 is about 5208.1877846330. The cubic root of 27125220 is about 300.4630626533.

Adding to 27125220 its reverse (2252172), we get a palindrome (29377392).

The spelling of 27125220 in words is "twenty-seven million, one hundred twenty-five thousand, two hundred twenty".