27292505021 has 2 divisors, whose sum is σ = 27292505022. Its totient is φ = 27292505020.

The previous prime is 27292505011. The next prime is 27292505047. The reversal of 27292505021 is 12050529272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20711239396 + 6581265625 = 143914^2 + 81125^2 .

It is a cyclic number.

It is not a de Polignac number, because 27292505021 - 2¹⁴ = 27292488637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27292505011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13646252510 + 13646252511.

It is an arithmetic number, because the mean of its divisors is an integer number (13646252511).

Almost surely, 2^27292505021 is an apocalyptic number.

It is an amenable number.

27292505021 is a deficient number, since it is larger than the sum of its proper divisors (1).

27292505021 is an equidigital number, since it uses as much as digits as its factorization.

27292505021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 27292505021 in words is "twenty-seven billion, two hundred ninety-two million, five hundred five thousand, twenty-one".