497560670221 has 2 divisors, whose sum is σ = 497560670222. Its totient is φ = 497560670220.

The previous prime is 497560670207. The next prime is 497560670261. The reversal of 497560670221 is 122076065794.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463780068196 + 33780602025 = 681014^2 + 183795^2 .

It is a cyclic number.

It is not a de Polignac number, because 497560670221 - 2⁷ = 497560670093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497560670261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248780335110 + 248780335111.

It is an arithmetic number, because the mean of its divisors is an integer number (248780335111).

Almost surely, 2^497560670221 is an apocalyptic number.

It is an amenable number.

497560670221 is a deficient number, since it is larger than the sum of its proper divisors (1).

497560670221 is an equidigital number, since it uses as much as digits as its factorization.

497560670221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 497560670221 in words is "four hundred ninety-seven billion, five hundred sixty million, six hundred seventy thousand, two hundred twenty-one".