27561006 has 32 divisors (see below), whose sum is σ = 66816000. Its totient is φ = 8351640.

The previous prime is 27560999. The next prime is 27561011. The reversal of 27561006 is 60016572.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 22606 + ... + 23793.

It is an arithmetic number, because the mean of its divisors is an integer number (2088000).

Almost surely, 2^27561006 is an apocalyptic number.

27561006 is an abundant number, since it is smaller than the sum of its proper divisors (39254994).

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

27561006 is a wasteful number, since it uses less digits than its factorization.

27561006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46421 (or 46415 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 27561006 is about 5249.8577123575. The cubic root of 27561006 is about 302.0635730089.

Adding to 27561006 its reverse (60016572), we get a palindrome (87577578).

The spelling of 27561006 in words is "twenty-seven million, five hundred sixty-one thousand, six".