27542057 has 4 divisors (see below), whose sum is σ = 29162196. Its totient is φ = 25921920.

The previous prime is 27541991. The next prime is 27542071. The reversal of 27542057 is 75024572.

27542057 is nontrivially palindromic in base 7.

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 17147881 + 10394176 = 4141^2 + 3224^2 .

It is a cyclic number.

It is not a de Polignac number, because 27542057 - 2¹⁶ = 27476521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27542657) 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, 810044 + ... + 810077.

It is an arithmetic number, because the mean of its divisors is an integer number (7290549).

Almost surely, 2^27542057 is an apocalyptic number.

It is an amenable number.

27542057 is a deficient number, since it is larger than the sum of its proper divisors (1620139).

27542057 is a wasteful number, since it uses less digits than its factorization.

27542057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620138.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 27542057 is about 5248.0526864733. The cubic root of 27542057 is about 301.9943312826.

The spelling of 27542057 in words is "twenty-seven million, five hundred forty-two thousand, fifty-seven".