27505138 has 8 divisors (see below), whose sum is σ = 41345280. Its totient is φ = 13723380.

The previous prime is 27505129. The next prime is 27505147. The reversal of 27505138 is 83150572.

It is an interprime number because it is at equal distance from previous prime (27505129) and next prime (27505147).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13398 + ... + 15313.

It is an arithmetic number, because the mean of its divisors is an integer number (5168160).

Almost surely, 2^27505138 is an apocalyptic number.

27505138 is a deficient number, since it is larger than the sum of its proper divisors (13840142).

27505138 is a wasteful number, since it uses less digits than its factorization.

27505138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29192.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 27505138 is about 5244.5341070490. The cubic root of 27505138 is about 301.8593339320.

The spelling of 27505138 in words is "twenty-seven million, five hundred five thousand, one hundred thirty-eight".