425320221425 has 12 divisors (see below), whose sum is σ = 575342263536. Its totient is φ = 309323797200.

The previous prime is 425320221379. The next prime is 425320221427. The reversal of 425320221425 is 524122023524.

It is not a de Polignac number, because 425320221425 - 2⁸ = 425320221169 is a prime.

It is a super-2 number, since 2×425320221425² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425320221391 and 425320221400.

It is not an unprimeable number, because it can be changed into a prime (425320221427) 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 11 ways as a sum of consecutive naturals, for example, 773309219 + ... + 773309768.

It is an arithmetic number, because the mean of its divisors is an integer number (47945188628).

Almost surely, 2^425320221425 is an apocalyptic number.

It is an amenable number.

425320221425 is a deficient number, since it is larger than the sum of its proper divisors (150022042111).

425320221425 is a wasteful number, since it uses less digits than its factorization.

425320221425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546619008 (or 1546619003 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 425320221425 its reverse (524122023524), we get a palindrome (949442244949).

The spelling of 425320221425 in words is "four hundred twenty-five billion, three hundred twenty million, two hundred twenty-one thousand, four hundred twenty-five".