27542961 has 6 divisors (see below), whose sum is σ = 39784290. Its totient is φ = 18361968.

The previous prime is 27542929. The next prime is 27542971. The reversal of 27542961 is 16924572.

27542961 is a `hidden beast` number, since 27 + 542 + 96 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16353936 + 11189025 = 4044^2 + 3345^2 .

It is not a de Polignac number, because 27542961 - 2⁵ = 27542929 is a prime.

It is a super-2 number, since 2×27542961² = 1517229401295042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27542971) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1530156 + ... + 1530173.

It is an arithmetic number, because the mean of its divisors is an integer number (6630715).

Almost surely, 2^27542961 is an apocalyptic number.

It is an amenable number.

27542961 is a deficient number, since it is larger than the sum of its proper divisors (12241329).

27542961 is a wasteful number, since it uses less digits than its factorization.

27542961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060335 (or 3060332 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 27542961 is about 5248.1388129507. The cubic root of 27542961 is about 301.9976353191.

The spelling of 27542961 in words is "twenty-seven million, five hundred forty-two thousand, nine hundred sixty-one".