425535239 has 2 divisors, whose sum is σ = 425535240. Its totient is φ = 425535238.

The previous prime is 425535197. The next prime is 425535247. The reversal of 425535239 is 932535524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425535239 - 2²⁰ = 424486663 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425535839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212767619 + 212767620.

It is an arithmetic number, because the mean of its divisors is an integer number (212767620).

Almost surely, 2^425535239 is an apocalyptic number.

425535239 is a deficient number, since it is larger than the sum of its proper divisors (1).

425535239 is an equidigital number, since it uses as much as digits as its factorization.

425535239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 38.

The square root of 425535239 is about 20628.5054960363. The cubic root of 425535239 is about 752.1627876561.

The spelling of 425535239 in words is "four hundred twenty-five million, five hundred thirty-five thousand, two hundred thirty-nine".