27561242 has 16 divisors (see below), whose sum is σ = 41864064. Its totient is φ = 13608000.

The previous prime is 27561211. The next prime is 27561251. The reversal of 27561242 is 24216572.

It is a happy number.

27561242 is nontrivially palindromic in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101567 + ... + 101837.

It is an arithmetic number, because the mean of its divisors is an integer number (2616504).

Almost surely, 2^27561242 is an apocalyptic number.

27561242 is a deficient number, since it is larger than the sum of its proper divisors (14302822).

27561242 is a wasteful number, since it uses less digits than its factorization.

27561242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725.

The product of its digits is 6720, while the sum is 29.

The square root of 27561242 is about 5249.8801891091. The cubic root of 27561242 is about 302.0644351787.

The spelling of 27561242 in words is "twenty-seven million, five hundred sixty-one thousand, two hundred forty-two".