860535253 has 2 divisors, whose sum is σ = 860535254. Its totient is φ = 860535252.

The previous prime is 860535217. The next prime is 860535283. The reversal of 860535253 is 352535068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 821510244 + 39025009 = 28662^2 + 6247^2 .

It is a cyclic number.

It is not a de Polignac number, because 860535253 - 2²¹ = 858438101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (860535283) 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, 430267626 + 430267627.

It is an arithmetic number, because the mean of its divisors is an integer number (430267627).

Almost surely, 2^860535253 is an apocalyptic number.

It is an amenable number.

860535253 is a deficient number, since it is larger than the sum of its proper divisors (1).

860535253 is an equidigital number, since it uses as much as digits as its factorization.

860535253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 860535253 is about 29334.8811656022. The cubic root of 860535253 is about 951.1657906085.

The spelling of 860535253 in words is "eight hundred sixty million, five hundred thirty-five thousand, two hundred fifty-three".