8500533401 has 2 divisors, whose sum is σ = 8500533402. Its totient is φ = 8500533400.

The previous prime is 8500533347. The next prime is 8500533449. The reversal of 8500533401 is 1043350058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8190069001 + 310464400 = 90499^2 + 17620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8500533401 is a prime.

It is not a weakly prime, because it can be changed into another prime (8500533451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4250266700 + 4250266701.

It is an arithmetic number, because the mean of its divisors is an integer number (4250266701).

Almost surely, 2^8500533401 is an apocalyptic number.

It is an amenable number.

8500533401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8500533401 is an equidigital number, since it uses as much as digits as its factorization.

8500533401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 8500533401 is about 92198.3373006260. The cubic root of 8500533401 is about 2040.8702394562.

Adding to 8500533401 its reverse (1043350058), we get a palindrome (9543883459).

The spelling of 8500533401 in words is "eight billion, five hundred million, five hundred thirty-three thousand, four hundred one".