425540539 has 2 divisors, whose sum is σ = 425540540. Its totient is φ = 425540538.

The previous prime is 425540501. The next prime is 425540543. The reversal of 425540539 is 935045524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425540539 - 2¹³ = 425532347 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 425540498 and 425540507.

It is not a weakly prime, because it can be changed into another prime (425540569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212770269 + 212770270.

It is an arithmetic number, because the mean of its divisors is an integer number (212770270).

Almost surely, 2^425540539 is an apocalyptic number.

425540539 is a deficient number, since it is larger than the sum of its proper divisors (1).

425540539 is an equidigital number, since it uses as much as digits as its factorization.

425540539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 425540539 is about 20628.6339586508. The cubic root of 425540539 is about 752.1659103480.

The spelling of 425540539 in words is "four hundred twenty-five million, five hundred forty thousand, five hundred thirty-nine".