425434543 has 4 divisors (see below), whose sum is σ = 425889520. Its totient is φ = 424979568.

The previous prime is 425434517. The next prime is 425434577. The reversal of 425434543 is 345434524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425434543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425434499 and 425434508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425434043) 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 in 3 ways as a sum of consecutive naturals, for example, 226083 + ... + 227956.

It is an arithmetic number, because the mean of its divisors is an integer number (106472380).

Almost surely, 2^425434543 is an apocalyptic number.

425434543 is a deficient number, since it is larger than the sum of its proper divisors (454977).

425434543 is an equidigital number, since it uses as much as digits as its factorization.

425434543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454976.

The product of its digits is 115200, while the sum is 34.

The square root of 425434543 is about 20626.0646513095. The cubic root of 425434543 is about 752.1034539417.

The spelling of 425434543 in words is "four hundred twenty-five million, four hundred thirty-four thousand, five hundred forty-three".