425243321 has 8 divisors (see below), whose sum is σ = 451076040. Its totient is φ = 399501568.

The previous prime is 425243317. The next prime is 425243339. The reversal of 425243321 is 123342524.

It can be written as a sum of positive squares in 4 ways, for example, as 5812921 + 419430400 = 2411^2 + 20480^2 .

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 425243321 - 2² = 425243317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425243381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12986 + ... + 31923.

It is an arithmetic number, because the mean of its divisors is an integer number (56384505).

Almost surely, 2^425243321 is an apocalyptic number.

It is an amenable number.

425243321 is a deficient number, since it is larger than the sum of its proper divisors (25832719).

425243321 is a wasteful number, since it uses less digits than its factorization.

425243321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45483.

The product of its digits is 5760, while the sum is 26.

The square root of 425243321 is about 20621.4286847444. The cubic root of 425243321 is about 751.9907532674.

Adding to 425243321 its reverse (123342524), we get a palindrome (548585845).

The spelling of 425243321 in words is "four hundred twenty-five million, two hundred forty-three thousand, three hundred twenty-one".