531850606409 has 2 divisors, whose sum is σ = 531850606410. Its totient is φ = 531850606408.

The previous prime is 531850606333. The next prime is 531850606433. The reversal of 531850606409 is 904606058135.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290698897225 + 241151709184 = 539165^2 + 491072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531850606409 is a prime.

It is not a weakly prime, because it can be changed into another prime (531850606709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265925303204 + 265925303205.

It is an arithmetic number, because the mean of its divisors is an integer number (265925303205).

Almost surely, 2^531850606409 is an apocalyptic number.

It is an amenable number.

531850606409 is a deficient number, since it is larger than the sum of its proper divisors (1).

531850606409 is an equidigital number, since it uses as much as digits as its factorization.

531850606409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 531850606409 in words is "five hundred thirty-one billion, eight hundred fifty million, six hundred six thousand, four hundred nine".