425844563 has 8 divisors (see below), whose sum is σ = 450993408. Its totient is φ = 401248584.

The previous prime is 425844557. The next prime is 425844571. The reversal of 425844563 is 365448524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425844563 - 2¹⁶ = 425779027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425844563.

It is not an unprimeable number, because it can be changed into a prime (425844553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136631 + ... + 139712.

It is an arithmetic number, because the mean of its divisors is an integer number (56374176).

Almost surely, 2^425844563 is an apocalyptic number.

425844563 is a deficient number, since it is larger than the sum of its proper divisors (25148845).

425844563 is a wasteful number, since it uses less digits than its factorization.

425844563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276433.

The product of its digits is 460800, while the sum is 41.

The square root of 425844563 is about 20636.0016233766. The cubic root of 425844563 is about 752.3449939923.

The spelling of 425844563 in words is "four hundred twenty-five million, eight hundred forty-four thousand, five hundred sixty-three".