425330033509 has 2 divisors, whose sum is σ = 425330033510. Its totient is φ = 425330033508.

The previous prime is 425330033497. The next prime is 425330033533. The reversal of 425330033509 is 905330033524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395779392100 + 29550641409 = 629110^2 + 171903^2 .

It is a cyclic number.

It is not a de Polignac number, because 425330033509 - 2¹⁵ = 425330000741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425330034509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212665016754 + 212665016755.

It is an arithmetic number, because the mean of its divisors is an integer number (212665016755).

Almost surely, 2^425330033509 is an apocalyptic number.

It is an amenable number.

425330033509 is a deficient number, since it is larger than the sum of its proper divisors (1).

425330033509 is an equidigital number, since it uses as much as digits as its factorization.

425330033509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 37.

The spelling of 425330033509 in words is "four hundred twenty-five billion, three hundred thirty million, thirty-three thousand, five hundred nine".