671222533 has 2 divisors, whose sum is σ = 671222534. Its totient is φ = 671222532.

The previous prime is 671222483. The next prime is 671222597. The reversal of 671222533 is 335222176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 670136769 + 1085764 = 25887^2 + 1042^2 .

It is a cyclic number.

It is not a de Polignac number, because 671222533 - 2¹⁷ = 671091461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671222495 and 671222504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671222333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335611266 + 335611267.

It is an arithmetic number, because the mean of its divisors is an integer number (335611267).

Almost surely, 2^671222533 is an apocalyptic number.

It is an amenable number.

671222533 is a deficient number, since it is larger than the sum of its proper divisors (1).

671222533 is an equidigital number, since it uses as much as digits as its factorization.

671222533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 671222533 is about 25907.9627334918. The cubic root of 671222533 is about 875.5659067913.

The spelling of 671222533 in words is "six hundred seventy-one million, two hundred twenty-two thousand, five hundred thirty-three".