27525505331 has 2 divisors, whose sum is σ = 27525505332. Its totient is φ = 27525505330.

The previous prime is 27525505327. The next prime is 27525505379. The reversal of 27525505331 is 13350552572.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27525505331 - 2² = 27525505327 is a prime.

It is a super-2 number, since 2×27525505331² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27525505531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13762752665 + 13762752666.

It is an arithmetic number, because the mean of its divisors is an integer number (13762752666).

Almost surely, 2^27525505331 is an apocalyptic number.

27525505331 is a deficient number, since it is larger than the sum of its proper divisors (1).

27525505331 is an equidigital number, since it uses as much as digits as its factorization.

27525505331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157500, while the sum is 38.

The spelling of 27525505331 in words is "twenty-seven billion, five hundred twenty-five million, five hundred five thousand, three hundred thirty-one".