805310825801 has 2 divisors, whose sum is σ = 805310825802. Its totient is φ = 805310825800.

The previous prime is 805310825797. The next prime is 805310825831. The reversal of 805310825801 is 108528013508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 548184756025 + 257126069776 = 740395^2 + 507076^2 .

It is a cyclic number.

It is not a de Polignac number, because 805310825801 - 2² = 805310825797 is a prime.

It is not a weakly prime, because it can be changed into another prime (805310825831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402655412900 + 402655412901.

It is an arithmetic number, because the mean of its divisors is an integer number (402655412901).

Almost surely, 2^805310825801 is an apocalyptic number.

It is an amenable number.

805310825801 is a deficient number, since it is larger than the sum of its proper divisors (1).

805310825801 is an equidigital number, since it uses as much as digits as its factorization.

805310825801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 41.

The spelling of 805310825801 in words is "eight hundred five billion, three hundred ten million, eight hundred twenty-five thousand, eight hundred one".