641017502533 has 2 divisors, whose sum is σ = 641017502534. Its totient is φ = 641017502532.

The previous prime is 641017502509. The next prime is 641017502591. The reversal of 641017502533 is 335205710146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 635945641444 + 5071861089 = 797462^2 + 71217^2 .

It is a cyclic number.

It is not a de Polignac number, because 641017502533 - 2⁵ = 641017502501 is a prime.

It is a super-2 number, since 2×641017502533² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641017502492 and 641017502501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641017512533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320508751266 + 320508751267.

It is an arithmetic number, because the mean of its divisors is an integer number (320508751267).

Almost surely, 2^641017502533 is an apocalyptic number.

It is an amenable number.

641017502533 is a deficient number, since it is larger than the sum of its proper divisors (1).

641017502533 is an equidigital number, since it uses as much as digits as its factorization.

641017502533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 641017502533 in words is "six hundred forty-one billion, seventeen million, five hundred two thousand, five hundred thirty-three".