27506131 has 2 divisors, whose sum is σ = 27506132. Its totient is φ = 27506130.

The previous prime is 27506081. The next prime is 27506147. The reversal of 27506131 is 13160572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27506131 - 2¹¹ = 27504083 is a prime.

It is a super-2 number, since 2×27506131² = 1513174485178322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27506096 and 27506105.

It is not a weakly prime, because it can be changed into another prime (27506161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13753065 + 13753066.

It is an arithmetic number, because the mean of its divisors is an integer number (13753066).

Almost surely, 2^27506131 is an apocalyptic number.

27506131 is a deficient number, since it is larger than the sum of its proper divisors (1).

27506131 is an equidigital number, since it uses as much as digits as its factorization.

27506131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 27506131 is about 5244.6287761862. The cubic root of 27506131 is about 301.8629664983.

The spelling of 27506131 in words is "twenty-seven million, five hundred six thousand, one hundred thirty-one".