800061533 has 2 divisors, whose sum is σ = 800061534. Its totient is φ = 800061532.

The previous prime is 800061527. The next prime is 800061551. The reversal of 800061533 is 335160008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438567364 + 361494169 = 20942^2 + 19013^2 .

It is a cyclic number.

It is not a de Polignac number, because 800061533 - 2¹⁸ = 799799389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800061503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400030766 + 400030767.

It is an arithmetic number, because the mean of its divisors is an integer number (400030767).

Almost surely, 2^800061533 is an apocalyptic number.

It is an amenable number.

800061533 is a deficient number, since it is larger than the sum of its proper divisors (1).

800061533 is an equidigital number, since it uses as much as digits as its factorization.

800061533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 800061533 is about 28285.3589865853. The cubic root of 800061533 is about 928.3415670195.

The spelling of 800061533 in words is "eight hundred million, sixty-one thousand, five hundred thirty-three".