27542101 has 4 divisors (see below), whose sum is σ = 27566604. Its totient is φ = 27517600.

The previous prime is 27542093. The next prime is 27542111. The reversal of 27542101 is 10124572.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19847025 + 7695076 = 4455^2 + 2774^2 .

It is a cyclic number.

It is not a de Polignac number, because 27542101 - 2³ = 27542093 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27542111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10480 + ... + 12841.

It is an arithmetic number, because the mean of its divisors is an integer number (6891651).

Almost surely, 2^27542101 is an apocalyptic number.

It is an amenable number.

27542101 is a deficient number, since it is larger than the sum of its proper divisors (24503).

27542101 is a wasteful number, since it uses less digits than its factorization.

27542101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24502.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 27542101 is about 5248.0568785027. The cubic root of 27542101 is about 301.9944921002.

Adding to 27542101 its reverse (10124572), we get a palindrome (37666673).

The spelling of 27542101 in words is "twenty-seven million, five hundred forty-two thousand, one hundred one".